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PIN Diode Drivers

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					                                                                                                                         PIN Diode Drivers




                                                                                  Spectrum Microwave o ffers a complete line-up of PIN diode switch
                                                                                  drivers with output current capability of 10 mA to 50 mA and
                                                                                  switching speeds as fast as 6 ns. Thin film metalization on ceramic
                                                                                  substrates ensures low parasitic capacitance for fast switching, small
                                                                                  size, and excellent reliability. AH FMt drivers are designed by our
                                                                                  experienced engineering staff; thus, if the drivers listed in the
                                                                                  table below do not meet your requirements, we would be happy
                                                                                  to discuss a custom circuit to fit your exact needs.


                                                                                   FEATURES
                                                                                   •   M IL-STD-883 Level B Screening available
                                                                                   •   Inverting and Non-inverting modes
                                                                                   •   Positive and negative output currents
                                                                                   •   –55º to +125ºC operating temp range
                                                                                   •   –65º to –150ºC storage temp range




                                                                                                                    3                                     5
                NO. OF DRIV ERS




                                                                                                         M A XIM UM                                 MAX
                                                                                            2 M A X INTERNA L                                 4
                                                                1                                                                                  POW ER
                                            OUTPUT CURRENT              M INIM UM M A XIM UM REP.         CURRENT       OPERA TING V OLTA GE      DISSIPA -
                                          D.C. (m A )      M INIM UM   OPEN CK T SW ITCHING RA TE           DRA IN            LIM ITS (V )        TION (W )
  M ODEL                            POSITIV E   NEGA TIV E PEA K (PA ) OUTPUT (V ) TIM ES (n s ) (M Hz )     (m A )        +5V           V ee    100º C 25º C
                                   M IN M A X M IN M A X POS      NEG POS      NEG To n To ff            +5V       V ee M IN M A X M IN M A X CA SE A M B
DD111/M           1               12/24 18/36 12      18   100 150      2.5    5.5   25    25       5      45      25   4.5    5.5     5      16  0.8    0.5
DD211/M           2                 12    18    12    18   100 150      2.5    5.5   25    25       5      90      50   4.5    5.5     5      16  1.6    0.5
DD211B            2                 24    36    12    18   100 150      2.5    5.5   25    25       5      90      50   4.5    5.5     5      16  1.6    0.5
DD311A            1                 8     12    24    36   300 300      4.0   11.0    6     8      20      15      15   4.5    5.5     5      16  0.8    0.5
DDF11/M           1                 8     12    24    36   300 300      4.0   11.0   12    15      10      45      15   4.5    5.5     5      16  0.8    0.5
DDF2311           2                 8     12    24    36   300 300      4.0   11.0   12    15      10      60      30   4.5    5.5     5      16  1.0    0.8
DDF3311           3                 8     12    24    36   300 300      4.0   11.0   12    15      10      75      45   4.5    5.5     5      16  1.5    1.2
DDF4311           4                 8     12    24    36   300 300      4.0   11.0   12    15      10      90      60   4.5    5.5     5      16  1.9    1.2
DDF5311           5                 8     12    24    36   300 300      4.0   11.0   12    15      10     135      75   4.5    5.5     5      16  2.8    1.6
DDF6311           6                 8     12    24    36   300 300      4.0   11.0   12    15      10     150      90   4.5    5.5     5      16  3.3    1.6
                                                                                                                                   Specifications subject to change without notice.
NOTES:
1. Output current is measured into a 10 Ohm load to ground.
2. Load is a 50 pF (39 + 10 scope probe) capacitor in parallel with a grounded cathode HP5082-0C01 PIN diode.
   Ton is measured from 50% of input (from a S<ASOO gate) to 10 +1 V diode load.
   Toff is measured from 50% of input to the rated open ckt negative voltage across diode load.
3. Exclusive of current supplied to the load.
4. To avoid exceeding power rating, the max. Vee should be held to 5 V when driving grounded anode diode.
5. De-rate linearity to 175 º C. Temperature is measured at case bottom, which should be heat sunk if necessary.




                                                     165Cedar Hill Street,Marlborough,MA01752 Tel:508.485.6350 Fax: 508.485.5168
                                                                              www.SpectrumMicrowave.com
DD111
DD111M *
High Speed Drivers                                                                                         .115
                                                                                                                                                .425
                                                                                                           MAX
A universal PIN diode driver with excellent noise                           0.035
                                                                                                                                                MAX
immunity, very fast switching, 100 mA current                                                                                  1                                   14             0.050
                                                                                                  V ee (– 5 to – 15)                                                              TP–
spikes and available test points for increasing
                                                                             Pkg                               Output
quiescent output current.                                                    Bottom                           Ground
                                                                                                                                                DD111
                                                                                                            Inv Input
1. W hen using inverting input, connect bias pin 5 to                                                      Input Bias
                                                                                                                                                XXXX
                                                                                                                                                                                  +30mA
   non-inverting input pin 6.                                                                         Non Input Inv                           TOP V IEW
                                                                                                              +5 V DC                                                             TP+
2. W hen using non-inverting input, connect bias pin 5
                                                                                                                               7                                   8
   to inverting input pin 4.                                                        .015
                                                                                    .002
3. For -30 mA output current, connect pin 8 to pin 9.                                                0'0 TY P 002 (M )                                                           250 M IN
                                                                                                           .005 +.001
4. For positive output currents other than 15 mA or
   30 mA , an external resistor can be connected                                                           600
   between pin 8 and +5V . See graph.
5. The negative output current varies with V ee and is                                                     500

   specified at -12V . W hen driving grounded anode                                                        400
   diodes, V ee should be kept at -5V where the negative
                                                                                                           300
   current will be 5 mA . It may be increased by connecting
   a resistor from TP- (pin 14) to V ee (pin 1). See figure.                                               200

                                                                                                           100

* M suffix denotes welded metal package instead of standard epoxy sealed                                     0
ceramic package.                                                                                                 0   10   20       30    40     50     60




DD211
DD211B
DD211M *
                                                                                                                                                     .015 ± .003
                                                                               CHA NNEL 1                                                                                  CHA NNEL 2
Dual High Speed Drivers                                                                               1                                                            14
                                                                           V ee (– 5 to – 15)                                                                              V ee (– 5 to – 15)
A dual DD111 with current programming pins                                              Output                                                                             Output
                                                                                       Ground                                    DD111                                     Ground
omitted. This driver is often used in SPDT applications                              Inv Input                                                                             Inv Input
                                                                                                                                 XXXX
by driving the inverting input of one channel and the                               Input Bias                                                                             Input Bias
                                                                                                                               TOP V IEW
noninverting input of the other channel from the same                          Non Input Inv                                                                               Non Input Inv
                                                                                       +5 V DC                                                                             +5 V DC +2
TTL input signal.                                                                                     7                                                            9
1. W hen using channel 1 inverting input pin 4, connect
                                                                                                                                    .425               250 M IN
   bias pin 5 to non-inverting input pin 6.                                                                                          SQ                  TY P
                                                                                                                                    MAX
2. W hen using channel 2 inverting input pin 11,.
   connect bias pin 10 to non-inverting pin 9.
                                                                                 .230                                              TOP
                                                                                                                                                                           110


                                                                                              .110
3. W hen using channel 1 non-inverting input pin 6,                              MAX
                                                                                                                               BOTTOM
                                                                                                                                                                                 035



   connect bias pin 5 to inverting input pin 4.
4. W hen using channel 2 non-inverting input pin 9,                                                       .005 ± .001
                                                                                           .035
   connect bias pin 10 to inverting input pin 11.
5. The two drivers are identical except for quiescent
   positive output current, which is nominally 15 mA                                                 14                                                                1

   for DD211 and 30 mA for DD211B.
6 W hen driving anode-grounded diodes, care must
  be exercised to avoid excessive power dissipation.
  V ee should be limited to -10 V, at which point the                                                                                                                                  0.050
  negative output current will be approximately                                            .015      9                                                                 7
  -10 mA . Consult factory for design assistance.                                          MAX
                                                                                                                           BOTTOM V IEW

* M suffix denotes welded metal package instead of standard epoxy-sealed
ceramic package.


                                                                                                                                        Continued on next page.
                                                              HIGH CURRENT DRIVERS


                                                                                                                      3                                                         5
                  NO. OF DRIV ERS




                                                                                                            M A XIM UM                                                     MAX
                                                                                   2                        INTERNA L                                       4             POW ER
                                                         1                                           MAX
                                      OUTPUT CURRENT           M INIM UM  M A XIM UM                 REP.    CURRENT               OPERA TING V OLTA GE                  DISSIPA -
                                                              OPEN CK T SW ITCHING                   RA TE    DRA IN                   LIM ITS (V )                      TION (W )
                                            D.C. (m A )
                                                              OUTPUT (V ) TIM ES (n s )             (M Hz )    (m A )
   M ODEL                            POSITIV E     NEGA TIV E                                                                         +5 V             V ee      100º C 25º C
                                    M IN M A X M IN      M A X POS     NEG       To n      To f f                +5 V     Ve e   M IN    MAX      M IN     M A X CA SE A M B
   DD111/M         2                24/40 36/60 24/40 36/60 4.0        11.0       100       200        1          45       30     4.5      5.5       3      16     1.0   0.8
   DD211/M         3                 16     24     16     24    4.0    11.0       100       200        1          90       50     4.5      5.5       3      16     1.5   1.2
   DD211B          3                 40     60     40     60    4.0    11.0       100       200        1          90       50     4.5      5.5       3      16     1.5   1.2
   DD311A          4                 16     24     16     24    4.0    11.0       100       200        1          15       60     4.5      5.5       3      16     1.9   1.2
   DDF11/M         4                 40     60     40     60    4.0    11.0       100       200        1          45       60     4.5      5.5       3      16     1.9   1.2
   DDF2311         6                 16     24     16     24    4.0    11.0       100       200        1          60       90     4.5      5.5       3      16     2.8   1.2
   DDF3311         6                 40     60     40     60    4.0    11.0       100       200        1          75       90     4.5      5.5       3      16     2.8   1.2

 NOTES:
 1 Output current measured into a 10 ohm load to ground.
 2 Load is a 50 pF (39 + 10 scope probe) capacitor in parallel with a grounded cathode HP5082-0C01 PIN diode.
   Ton is measured from 50% of input (from a S<A SOO gate) to 10 +1 V diode load.
   Toff is measured from 50% of input to the rated open ckt negative voltage across diode load.
 3 Exclusive of current supplied to the load.
 4 To avoid exceeding power rating, the max V ee should be held to 5 V when driving ground ed anode diode.
 5 Derate linearity to 175º C. Temperature is measured at case bottom, which should be heat sunk if necessary.




DD217
Dual High Current Driver

Two independent universal medium speed (100 ns)
drivers with separate positive and negative quiescent                                                                   645
                                                                                                                         SQ                               .067
output current programming and separate                                                                                 MAX
input logic mode control. This driver is often                                                                                                                                  .125
used in SPDT applications by driving both inputs                                                                                  395
                                                                                                                                                                                MAX
                                                                                                                                                                  0.038
from the same TTL input signal and applying                                                                                      MAX
opposite logic inputs to the two mode controls.                                                                     1                        22                       0.050
                                                                                                  Output #1                                           – 50ma
1. Inputs are inverting when M ode control has a logic                                            +50ma #1
   high input.                                                                                           +5V
                                                                                                    Input #1
2. Inputs are non-invertin g when M ode control has a                                      M ode Control #1                                               645 M A X
                                                                                                      Ground                     DD217
   logic low input.                                                                                  11
                                                                                           M ode Control #2                                                           Pkg
                                                                                                                                 XXXX
3. To increase positive output current from the normal                                              Input #2                                                          Bottom
                                                                                                  +50ma #2
   +30 mA to +50 mA , connect +50 mA pin to +5 V .                                      V ee (– 5V to – 15V )
                                                                                                  Output #2                                           – 50ma
4. To increase negative output current from the normal                                                              11        TOP V IEW      12
   –30 mA to –50 mA , connect –50 mA pin to V ee.                                                                                                                     0.015
                                                                                                                                                                      TY P
5. The negative output current does not vary with \/ee,                                                                                                                        010 TY P
                                                                                                                                          500 M IN TY P
   which should not exceed –5 V when driving
   grounded anode diodes to avoid high power                                                                                  M ETA L W ELDED PA CK A GE
   dissip ation in the drivers.




                                                                                                                                                      Continued on next page.
                                                                                                                    395
DDF2311                                                                                                             MAX
DDF3311
DDF4311                                                                                              1                         22      (– 5V to
                                                                                           TP                                          – 15V )
                                                                                       Output                                                                     Pkg
Tw o, Three, and Four Channel                                                                                                           N/C
                                                                                                                                                                  Bottom
                                                                                           NC
High Speed Drivers                                                        Non-Inverting Input
                                                                                       Ground                                                                     0.050
M ultiple independent high-speed drivers with                                        M ode #1                   DDF2311
                                                                                                                                           645 M A X

300 mA peak current spikes.                                                          M ode #2                    XXXX
                                                                                     Input #2
1. Inputs are non-inverting when M ode control has a                                       NC
                                                                                   Output #2                                            N/C
   logic high input.                                                                       TP                                          +5V
                                                                                                               TOP V IEW
                                                                                                     11                        12
2. Inputs are inverting when M ode control has a logic
   low input.                                                                                             500 M IN TY P                                             0.038
                                                                                                                                                         125
3. To increase switching spike currents, add a capacitor                                         M ETA L W ELDED PA CK A GE                              MAX
   of up to 560 pF between the output and TP pins.
                                                                                                                                                              010 ± 002
4. M ode control and input pins are interchangeable                                                                  645
                                                                                                                                                  500 M IN
                                                                                                                      SQ
   within any one channel.                                                                                           MAX
                                                                                                                                                    TY P
                                                                                                                                                                    015
                                                                                                 1                                    22
5. W hen driving anode-grounded diodes, excessive
   power dissipation must be avoided. V ee should be                                  Ground                                                   TP1
                                                                                    Input #1                                                   Output    #1
   limited to -8V with -5V recommended.                                     M ode Control #1                                                   TP2




                                                                                                                                                                          0.050
                                                                                    Input #2                                                   Output    #2
6. The DDF2311/3311/4311 do not have a true current                         M ode Control #2                                                   N/C
                                                                                    Input #3                    DDF3311/4311                   TP3
   source output. Instead the output is connected to                        M ode Control #3                       XXXX                        Output    #3
   a 380-ohm resistor in parallel with a 560 pF capacitor                           Input #4                                                   TP4
                                                                            M ode Control #4                                                   Output    #4
   and the driven end of this RC combination is                                          +5V                                                   N/C
                                                                                      Ground                                                   +12V
   switched between +4V and V ee so that the negative                                                            TOP V IEW




                                                                                                                                                                      067
                                                                                                11                                    12
   output current varies directly with V ee.
                                                                                                                                                   150
                                                                                                  M ETA L W ELDED PA CK A GE                      MAX




DDF5311
DDF6311
                                                                                4. M ode control and input pins are interchangeable
Five and Six Channel
                                                                                   within any one channel-
High Speed Drivers
                                                                                5. W hen driving anode-grounded diodes, excessive
Independent high speed drivers with 300 mA
                                                                                   power dissipation must be avoided. V gg should
peak current spikes.
                                                                                   be limited to -8V with -5V recommended.
1. Inputs are non-inverting when M ode control has a
                                                                                6. These drivers do not have a true current source
   logic high input.
                                                                                   output. Instead the output is connected to a 380-
2. Inputs are inverting when M ode control has a logic                             ohm resistor in parallel with a 560 pF capacitor and
   low input.                                                                      the driven end of this RC combination is switched
3. To increase switching spike currents, add a capacitor                           between +4V and V ee so that the negative output
   of up to 560 pF between the output and TP pins.                                 current varies directly withV ee .
                                                        0.770 sq. (max)
                                                                                                                                       .010 ± .002
                             Ground                                                                        Output   #1
                           Input #1                                                                        TP1
                 M ode   Control #1                                                                        TP2
                           Input #2                                                                        Output   #2
                 M ode   Control #2                                                                        Output   #3
                           Input #3                                                                        TP3
                 M ode   Control #3                      DDF5311/6311                                      +5V                        Pkg
                           Input #4                                                                        TP4                        Bottom
                                                            XXXX
                 M ode   Control #4                                                                        Output   #4
                           Input #5                                                                        Output   #5
                 M ode   Control #5                                                                        TP5
                           Input #6                                                                        TP6
                 M ode   Control #6                        0.075 max                                       Output   #6
                             Ground                                                                        -12V
                                                                                                                                             .150 max
                                                      0.075 max
                                                                                                                                       0.067 typ

                                      0.500 min                                                 0.015 ± 0.003 typ




                                                  M ETA L W ELDED PA CK A GE                    0.050 typ
                                                                                                                                    Continued on next page.
DD311A
DD311A M *
Ultra High Speed SPST
A n inverting only ultra high speed driver with
300 mA switching current spikes. The DD311A                                            .115
                                                                                      MAX                                                          425 SQ
output (pin 2) is connected to a 360 ohm resistor                                                                                                   MAX
                                                                                      0.035
paralleled with a 560 pF capacitor and the driven                                                                                    1                              14
end (pin 11) of the resistor/capacitor combination                                                          V ee (– % V to – 15V )
is switched between +4 and -10 V.                                                              0.050
                                                                                                                          Output
                                                                                                                          Ground                   DD311A
1. The DD311A should be driven from an otherwise                                                                        Inv Input                                             TP
                                                                                                                                                    XXXX
   unloaded 54S, 54A S, or 54F type gate to achieve                                  Pkg Bottom
                                                                                                                                                  TOP V IEW
   rated switching times. Input capacitance is ap-                                                                            +5V
   proximately 50 pF.                                                                  0.015                                         7                               8
                                                                                       ±.003
2. To increase switching peak currents, add a capaci-
                                                                                                                                                                    250 M IN TY P
   tor of up to 560 pF between the output and TP pin.                                             .005 ±.001
                                                                                                    .010 TY P
                                                                                                  +002 (M * )
* M suffix denotes welded metal package instead of standard epoxy-sealed
ceramic package.




DDF311
DDF311M *
High Speed Drivers
Single channel high speed drivers with 300 mA
peak current spikes.
1. Inputs are non-inverting when M ode control has a                                                                                                      100
                                                                                                                                                       (.115 M )
                                                                                                                         425 SQ
   logic high input.                                                                                                      MAX
                                                                                                                                                          MAX

2. Inputs are inverting when M ode control has logic                                                                                                     0.035
                                                                                                            1                        14      22
   low input.                                                              V ee (– % V to – 15V )
3. To increase switching peak currents, add a capaci-                                    Output
                                                                                                                                                              0.050
                                                                                         Ground
   tor of up to 560 pF between the output and TP pin.                                        N/C
                                                                                                                     DD320/420/620
                                                                                                                                                  TP
                                                                                           Input                     DD320/420/620
4. M ode control and input pins are interchangeable                                                                        XXXX                        Pkg Bottom
                                                                                  M ode Control
   within any one channel.                                                                   +5V
                                                                                                                                                         0.015
5. D DF311 Series drivers do not have a true current                                                        7                            8                TY P
   source output. Instead the output is connected to a                                                                   TOP V IEW
                                                                                                                                     250 M IN TY P.
                                                                                                       11
   380-ohm resistor in parallel with a 560 pF capacitor                                                                                                            .0.05 ± .001
   and the driven end of this RC combination is                                                                                                                      010 TY P.
                                                                                                                                                                    +002 (M * )
   switched between +4 and V ee so that the negative
   output current varies directly with V ee.

* M suffix denotes welded metal package instead of standard epoxy-sealed
ceramic package.




                                                                                                                                             Continued on next page.
DD320              DD350
DD420              DD450
DD620              DD650
Three, Four, and Six Channel High Current
Drivers
M ultiple independent medium speed drivers with




                                                                                                                                           .010 ± .002
separate input logic mode controls. Logic inputs
                                                                                                       645                    500 M IN
are true TTL unit loads.                                                                                SQ                      TY P
                                                                                                       MAX                                               .015
1.   Inputs are inverting when M ode control has a logic
                                                                                        1                            22
     high input.                                                                  +5V                                     V ee (-SV to – 15V )
                                                                           Output #1                                      Output #6
2.   Inputs are non-inverting when M ode control has a




                                                                                                                                                            0.050
                                                                     M ode Control #1                                     M ode Control #6
                                                                             Input #1                                     Input #6
     logic low input.                                                      Output #2               DD320/420/620
                                                                                                                          Output #5
                                                                     M ode Control #2              DD320/420/620          M ode Control #5
3.   M ode control and input pins are interchangeable                        Input #2                                     Input #5
                                                                                                       XXXX
     within any one channel.                                               Output #3                                      Output #4
                                                                     M ode Control #3                                     M ode Control #4
4.   The negative output current does not vary with \/ee                     Input #3                                     Input #4                        Pkg
                                                                               Ground                                     Ground
     which should not exceed -5V when driving                                                        TOP V IEW                                            Bottom
                                                                                        11                           12
     grounded anode diodes to avoid high power dissi-
                                                                                                                                    .150
     pation in the drivers.                                                                                                                               .067
                                                                                                                                    MAX

5.   The last two digits of the part number signify out-
     put current. Other currents are available on                                            M ETA L W ELDED PA CK A GE
     special order.



APPLICATION NOTES

PIN Diode Sw itching Times                                                     Heat Sinking
PIN diodes are used as RF switches because of their                            The power dissipated in PIN diode switches is conducted
low off-capacitance/on-resistance product. However,                            to the bottom of the package. The thin walls leading to
they store a significant charge during conduction that                         the top of the package represent a high thermal resistance.
must be removed before they will turn off. Typically,                          The total power in the hybrid is the sum of it own current
this is specified as storage time (TS), which is made to                       drain multiplied by the voltage of each supply plus the output
look better than it might be by rating it with a high ratio                    current of each driver multiplied by the supply voltage less
of reverse (IR) to forward (IF) current. W hen switching                       the V F of the PIN diode.
these diodes with a non-spiking driver, the typical TS
will be multiplied by the specified ratio. For example,                        The total can be substantial especially in the multiple
the M A 47120 has a TS of 12 ns with IF=20 mA and IR=                          high current drivers. If your calculations show that the
200 mA . W ith symmetrical currents as delivered by                            hybrid should be heat sunk, you may find it convenient
high current drivers, the TS becomes 120 ns. High                              to place it top down on the PC board so that the bottom
speed drivers supply a spike of several hundred mA at                          of the hybrid may be mounted directly to the metal
turn-on and turn-off to shorten the TS of the PIN diode.                       case of your package.

Other Diode Drivers

In addition to these standard circuits, Spectrum Microwave produces a wide range of custom-designed drivers. These include a dual
ECL-input driver (DD212) and a 28-channel 50 mA driver (DD2850). Spectrum Microwave is also one of the largest custom hybrid
manufacturers in the United States. Please contact the factory or your local representative for a quote on your driver requirements or
your own custom hybrid circuit.

				
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Description: Diode is also called crystal diodes, only one direction to the current of electronic components. It is a bonding with a part number of the two terminal devices with in accordance with the direction of the applied voltage, the current flow or the flow of nature. Crystal diode is a p-type semiconductor and n-type semiconductor pn junction formed at the interface of both sides of the formation of space charge layer, and has a self-built electric field. When there is no applied voltage, due to the pn junction on both sides of carrier concentration caused by poor diffusion current and drift current caused by self-built electric field is equal to the power balance.