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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- IV (New) EXAMINATION - WINTER 2019
Subject Code: 2141706 Date: 14/12/2019
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Subject Name: Analog Signal Processing
Time: 10:30 AM TO 01:00 PM Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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Q.1 (a) Draw the pin diagram of op-amp 741 and explain the function of each pin. 03
(b) Define the following terms: 04
- Common mode rejection ratio (ii) Slew Rate
- Supply voltage rejection ratio (iv) Input offset voltage
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(c) Draw and explain the Voltage series feedback amplifier (Non-inverting amplifier with feedback), also derive the equation of close loop voltage gain. 07
Q.2 (a) Draw and explain the Unity Gain Amplifier. 03
(b) If Ra=Rb=Rc=Rm=2kO, Rf=3kO, RL=5kO, Va=0.75v, Vb=1v and Vc=1.25v, Find the value of Vo. 04
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(c) Write short note on RC phase shift Oscillator. 07
OR
(c) Write a short note on Wien Bridge oscillator. 07
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Q.3 (a) Draw and explain the V-I converter circuit with floating load. 03
(b) Draw and explain the Schmitt trigger circuit with the help of op-amp. 04
(c) Explain differentiator circuit using op-amp in detail. 07
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OR
Q.3 (a) Enlist six ideal characteristics of op-amp 741. 03
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(b) Short note: Sub-tractor amplifier using op amp. 04
(c) Explain integrator circuit using op-amp in detail. 07
Q.4 (a) Draw and explain the Averaging amplifier. 03
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(b) Describe the working of Zero crossing detector. 04
(c) Draw and explain the Successive Approximation type ADC. 07
OR
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Q.4 (a) Draw and explain the circuit diagram of the Negative Clipper. 03
(b) Write a short note on instrumentation amplifier using three op-amps. 04
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(c) Explain in detail the binary weighted register type D/A converter. 07
Q.5 (a) Explain all - pass filter with necessary diagrams. 03
(b) Draw and explain the circuit diagram of the Positive Clamper. 04
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(c) Explain the monostable multivibrator using 555 timer with its internal block diagram and its timing waveforms. 07
OR
Q.5 (a) Explain band-pass filter with necessary diagrams. 03
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(b) Draw and explain the offset voltage compensating network for non-inverting amplifier. 04
(c) Explain the astable multivibrator using 555 timer with its internal block diagram and its timing waveforms. 07
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