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					ELECTRONIC CIRCUIT DESIGN AA 2012-13                                                                                   h13-16
                                                                                                                       h8-10
DATE           HH           notes SUBJECT                                                                              h10-13

       2-Oct        3 L          Course introduction. Electronic systems.
                                 Analog signals and its representations in the time and in the frequency domain.
                        L        Fourier series and Fourier transform. Examples.
                        L        Class Test.
                                 Superposition theorem. Related exercise. RC Circuit analysis and Single Time
                                 Constant Circuits Time-Domain analysis method. Exercises (CR and other
       3-Oct        2 E          STRC circuits). Capacitive divider, compensated divider. 2h
                      E
       4-Oct        3 L          Laplace Transform, s-domain. Generalized frequencies.
                                 Symbolic impedence. Transfer functions. Physical interpretation of poles and
                        L        zeros. Graphical representation of transfer functions.
                        L        Operational amplifier. Ideal model. Inverting and non inverting amplifier
                                 Introduction to feedback theory. Loop gain defionition and computation. General
       8-Oct        3 L          properties of negative feedback circuits.
                                 Analysis of feedback circuits. Computation of ideal gain in real circuits (non
                                 inverting amplifier, invrting amplifier, T-feedback amplifier). Computation of the
                        L        loop gain in real circuits.
                                 Negative feedback. Effect of negative feedback on equivalent impedances.
                                 Computation of equivalent impedances (non inverting amplifier and inverting
                      L          amplifier input impedances, output impedance)
       9-Oct        2 L          Direct feedforward gain
                      L          Difference amplifier.
                                 Common mode and differential mode in 2-port amplifiers. Definition of CMRR.
   10-Oct           3 L          CMRR due to resistive mismatch in difference amplifier.
                                 CMRR in op-amp. Effect of finite CMRR of op-amp on inv. Ampl., non-inv.
                        L        Ampl., difference amp.
                        L        Istrumentation amplifier (INA). Properties, CMRR, applications.
                                 Training: Dirac delta function. RC and CR networks in the frequency domain
                                 and Bode diagrams. RC and CR networks with square wave inputs at T larger
   15-Oct           3 E          and comparable (smaller) than tau.
                      E
                      E

                                 Training: Introduction to Amplifiers (Voltage Amplifiers, Current Amplifiers,
                                 Transimpedence Amplifiers, Transconductance Amplifiers) : euivalent circuit,
                                 and impedence levels. Exercise on operational amplifiers: ideal gain, loop gain,
                                 real gain, offset voltage, bias currents and compensation resistor, bias current
   16-Oct           2            offset, ideal time response and Bode diagrams (exerxices at pag. 27 and 33)

                                 Frequency response of OA and its effects. Graphical method to compute closed
   17-Oct           3 L          loop gain of feedback circuits.

                        L        Non linear OA behaviour: finite supply voltages, slew-rate, max output current.
                        L
   22-Oct           3   L        Inverting integrator with OA. Ideal and approximate integration.
                        L        Frequency and time response.
                        L        Inverting differentiator. Ideal and approximate differentiator
   23-Oct           2   L        Frequency and time response.
                        L        Applications
   24-Oct           3   L        Stability of feedback circuits. Bode criterion and physical interpretation.
                        L        Phase margin and gain margin.
                        L        Simplified criterion for minimum phase systems.
   29-Oct           3   E        Training: amplifying circuits with op-amps:
                        E        ideal gain, real gain, loop gain, input bias current and offset voltage,
                                 Slew-Rate, output impedance,
                        E        Bode diagrams.
                                 Training: amplifying circuits with op-amp: ideal gain, loop gain, real gain, direct
   30-Oct           2            forward gain

                                 Training: amplifying circuits with op-amp: ideal gain, loop gain, real gain, direct
   31-Oct           3 E          forward gain
                      E          Equivalent impedences as a function of frequency
                      E
    5-Nov           3 E          SUSPENSION (NO LESSON)
                      E
             E
                 MOSFET (structure, output characteristics, transcharacteristics,
                 transconductance). MOSFET (p and n) small signal behaviour. Output
 6-Nov   2 L     resistance, Early voltage.
           L
                 Body effect, impact on . MOSFET low frequency model. DC and small signal
 7-Nov   3 L     analysis.
           L     Common source amplifier with nMOSFET: bias, voltage gain.
           L
12-Nov   3 E     Class exercise - AO stability and compensation
           E     Class exercise - MOSFETs at DC
           E     Class exercise
13-Nov   2 L     Common Source MOSFET stage with Rs. Stability/reproducibility of bias.
           L     Small signal behaviour. Thevenin equivalent.
14-Nov   3 L     Input and output impedences at low frequency
           L     Source follower as voltage buffer.
           L     Effect of bypass capacitance on Rs
19-Nov   3 E     Class exercise - MOSFET stages at DC and high freq.
           E     Class exercise
           E     Class exercise
20-Nov   2 L     High frequency MOSFET model.
           L     High frequency response in MOS amplifiers1: CS stage with Cgd
21-Nov   3 L     Miller theorem and its application (Cgd)

             L   Approximate computation of poles and zeros. Method of time constants. 2h
             L
26-Nov   3   E   High frequency response in MOS amplifiers2: CS stage with Cgs and Cgd
             E   High frequency response in MOS amplifiers3: SF at high frequency
             E
27-Nov   2   L   Cascode stage
             L   High frequency behaviour of cascode stage
28-Nov   3   L   Class exercise
             L   Class exercise
             L   Class exercise
 3-Dec   3   E   Bipolar transistor: device structure, physical operation, I-V relationships
             E   Single stage BJT amplifiers. Comparison with MOSFET.
             E   Differential stage, differential-mode gain, common-mode gain, CMRR.
 4-Dec   2   L   Current mirrors and active loads.
             L   Differential stage with active load
 5-Dec   3   L   Class exercise
             L   Class exercise
             L   Class exercise
10-Dec   3   E   Output impedance of a current mirror.
             E   High frequency behaviour of Ad, Ac, CMRR in differential stage
             E
11-Dec   2   L   Differential stage with active load
             L   differential and common mode gain
12-Dec   3   L   Class exercise
             L   Class exercise
             L   Class exercise
17-Dec   3   E   OA in CMOS technology. Two stage CMOS OA.
             E   Low frequency small signal gain
             E   DC properties. offset, common-mode input range, output range, etc.
18-Dec   2   L   Computation of dominant poles/zeros in CMOS opamp
             L   Frequency response of 2-stage CMOS opamp
19-Dec   3   L   Frequency response of 2-stage CMOS opamp: compensation techniques
             L
                 nMOS+R as digital inverter. General properties of digital circuits (technology,
             L   logic levels, threshold, noise margins, etc.)
                 VACATION
                 Christmas break
 7-Jan   3 E     CMOS inverter: static characteristics, logic threshold, symmetry, etc.
           E     CMOS inverter: dynamic characteristics, propagation delays
           E
 8-Jan   2 L     Class exercise - 2-stage CMOS opamp
           L     Class exercise
 9-Jan   3 L     Power dissipation in CMOS inverters
           L     Extension to CMOS logic gates:
           L     design and performance
14-Jan   3 E   Class exercise - CMOS inverter
           E   Class exercise - CMOS gates
           E   Class exercise
15-Jan   2     Conclusive remarks

16-Jan   3
D21
D21
D21
DATA      ORE       note


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24-Oct   2



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27-Oct   2e

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28-Oct       lauree no/ls

             lauree no/ls
31-Oct       V
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 1-Nov       V
             V

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21-Nov       1a sospensione
22-Nov       1a sospensione
24-Nov       1a sospensione
25-Nov       1a sospensione


28-Nov



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19-Dec



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22-Dec   laurea LS/VO



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30-Jan
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3-Feb    fine 1o sem.
ARGOMENTO

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1a sospensione
1a sospensione
1a sospensione
1a sospensione

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