HiZx8 8-Channel Differential Amplifier

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					                                                                                                                                                                                                                                    SPECIFICATIONS
HiZx8 8-Channel Differential Amplifier
                                                                                                                                                                                                          AMPLIFERS (8):
                                                                                                                                                                                                          Input: Differential
• LOW NOISE
                                                                                                                                                                                                          Input Impedance: 1012Ohms
• WIDE GAIN RANGE (10-100,000)                                                                                                                                                                            Input Bias Current: <4pA
                                                                                                                                                                                                          Common Mode Rejection: 95dB at 60Hz
• SHARP (-12dB/OCTAVE) HIGH AND LOW CUTOFF FILTERS
                                                                                                                                                                                                          Gain: x10 to x100,000 in 13 calibrated steps (includes x10 gain from
                                                                                                                                                                                                             Probe preamplifier)
• MAINS LINE FILTER (50 OR 60Hz) PROVIDED
                                                                                                                                                                                                          Frequency Response: 100Hz - 10KHz (-3dB)
• BUILT-IN CAL SIGNAL (100 MICROVOLTS)                                                                                                                                                                    Filter Cutoff Slopes: -12dB/Octave plus an additional -24dB/Oc-
                                                                                                                                                                                                             tave above 10KHz (other value can be specified)
• COMPACT SIZE WITH BUILT-IN POWER SUPPLY                                                                                                                                                                 High Cutoff Ranges (Hz)(-3dB): 5K, 7K, 10K
                                                                                                                                                                                                          Low Cutoff Ranges (Hz) (-3dB): 100, 300, 500
• EXTRA 24 DB/OCTAVE FILTER ABOVE 10KHZ (OTHER VALUES
                                                                                                                                                                                                          Input Dynamic Range: +1V
  CAN BE SPECIFIED)
                                                                                                                                                                                                          Output Dynamic Range: +10V
• PROBE AVAILABLE SEPARATELY WITH OR WITHOUT                                                                                                                                                              Cal Signal: 1000Hz square wave provided equivalent to 100 micro-
  ADAPTER/POWER SUPPLY MODULE                                                                                                                                                                                volts at Probe input
                                                                                                                                                                                                          Line Filter: 50 or 60Hz (specify), -40dB attenuation
                                                                                                                                                                                                          Power Requirements: 115V/230V selectable, 50-60Hz, 1A
                                                                                    HiZx8 Differential Amplifier
                                                                                                                                                                                                          Dimensions: Module:7"h x 8 1/4"w x9"d (18x21x23cm);
                                                   1                    2             3      4       5      6                                                           7                    8               6.5 lbs. (3kg)
                                                   7K                   7K                7K                   7K                7K                   7K                7K                   7K

                                          5K
                                         HIGH
                                                         10K
                                                         FLTR
                                                                5K            10K   5K          10K   5K             10K   5K          10K   5K             10K   5K          10K   5K             10K       Probe: 4 1/4"w x 2 3/4"h x 2"d (7x11x 5cm); 2 lbs. (.9 kg)
                                         100
                                                   300

                                                          500 100
                                                                        300

                                                                              500   100
                                                                                          300

                                                                                                500   100
                                                                                                               300

                                                                                                                     500   100
                                                                                                                                 300

                                                                                                                                       500   100
                                                                                                                                                      300

                                                                                                                                                            500   100
                                                                                                                                                                        300

                                                                                                                                                                              500   100
                                                                                                                                                                                             300

                                                                                                                                                                                                   500
                                                                                                                                                                                                             with 6' (2m) cable (other lengths optional)
                                         LOW             FLTR


                                         OFF              ON OFF              ON    OFF         ON    OFF            ON    OFF         ON    OFF            ON    OFF         ON    OFF            ON


                                                                                                                                                                                                          HiZx8 PROBE (only):
                                         LINE            FLTR

                                                   100 200              100 200           100 200              100 200           100 200              100 200           100 200              100 200
                                              50                   50                50                   50                50                   50                50                   50
                                         20               500 20               500 20            500 20               500 20            500 20               500 20            500 20               500
                                         10              1000 10              1000 10           1000 10              1000 10           1000 10              1000 10           1000 10              1000
                                                                                                                                                                                                          Input: Differential
          HiZx8 PROBE
                                          X1
                                         GAIN
                                                         X100 X1              X100 X1           X100 X1              X100 X1           X100 X1              X100 X1           X100 X1              X100
                                                                                                                                                                                                          Input Impedance: 1012Ohms
                                                                                                                                                                                                          Input Bias Current: <4pA
     +                  +
1                           5
     -                  -


     +                  +
                                                         ON                   ON                ON                   ON                ON                   ON                ON                   ON     Common Mode Rejection: 95dB at 60Hz
2                           6                 OUTPUT
     -                  -

                                                                                                                                             OFF            POWER                   OFF            CAL
                                                                                                                                                                                                          Gain: x10
     +                  +
3
     -                  -
                            7
                                                                                                                                                            BOWDOINHAM, ME 04008 USA
                                                                                                                                                                                                          Frequency Response: DC-20KHz
4
     +                  +
                            8
                                                                                                                                                                                                          Input Dynamic Range: +1V
                                                                                                                                                                                                          Output Dynamic Range: +10V
     -                  -

    COM



                                                                                                                                                                                                          Power Requirements: +15/-15VDC, 100mA
                                                                                                                                                                                                          Dimensions: Probe: 4 1/4"w x 2 3/4"h x 2"d (7x11x 5cm); 2 lbs.
                                                                                                                                                                                                             (.9 kg) with 6' (2m) cable (other lengths optional)
The 40-41-2 HiZx8 8-Channel Differential Amplifier is
an inexpensive multi-channel amplifier for experiments us-                                                                                                                                                HiZx8 PROBE (only):
ing multiple microelectrodes which require input buffering                                                                                                                                                Dimensions: Probe: 4 1/4"w x 2 3/4"h x 2"d (7x11x 5cm); 2 lbs.
near the preparation to maximize signal to noise.                                                                                                                                                           (.9 kg) with 6' (2m) cable (other lengths optional)

The instrument features an 8-channel differential probe which
can be mounted near the preparation. Since many experi-
                                                                                                                                                                                                                               ORDERING INFORMATION
ments involve transducers which generate high frequency
interference, the system includes an extra sharp, 24 dB/                                                                                                                                                     40-41-2    HiZx8 8-Channel Differential Amplifier with
                                                                                                                                                                                                                        probe and module with built-in power supply
Octave, 10KHz filter in addition to the adjustable high cutoff
filters.                                                                                                                                                                                                     40-41-3    HiZx8 Differential Probe (only) with 2.5m cable
                                                                                                                                                                                                                        (other lengths optional)
Compact, with built-in power supply, two HiZx8 Amplifiers                                                                                                                                                    40-41-6    Miniature HiZx8 Probe (only) w/2.5m cable
(16 channels) can be mounted in only 7 inches (17.7cm) of
vertical space in a standard intrument rack.
                                                                                                                                                                                                                  Because many computerized data analysis systems do
                                                                                                                                                                                                                  not include provision for a high impedance head stage,
                                                                                                                                                                                                                  we've made our X10 Gain 8-channel HiZ8 Probe
                                                                                                                                                                                                                  available as a separate catalog item. We've also
                                                                                                                                                                                                                  developed an Adapter/Power Supply Module in two
                                                                                                                                                                                                                  convenient mounting configurations. Both include
                                                                                                                                                                                                                  sufficient, regulated + and - 15 volts to power other
                                                                                                                                                                                                                  high gain amplifiers like the Neuralynx-8.

                                                                                                                                                                                                                  Please see page 47.



                                FHC Inc., 9 Main Street, Bowdoinham ME 04008 USA                                                                                                                                                                              L022-D PAGE 46
                                Telephone: 207-666-8190 • US & Canada: 800-326-2905 • FAX: 207-666-8292                                                                                                                                                               010300
                                E-mail: fhcinc@fh-co.com • Website: http://www.fh-co.com