Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 4th Sem New 2141706 Analog Signal Processing Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?IV (NEW) EXAMINATION ? WINTER 2018
Subject Code:2141706 Date:10/12/2018
Subject Name:Analog Signal Processing
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Draw the buffer circuit using op-amp. 03
(b) Design practical integrator circuit to integrate 20Khz.square wave
signal.
04
(c) Discuss three op-amp design of Instrumentation amplifier. Derive
its transfer function.
07
Q.2 (a) Draw dual input unbalanced differential amplifier using
transistors.
03
(b) Give the IC numbers of any op-amps used for loop control and low
error signal conditioning circuits.
04
(c) Draw Active second order high pass butter worth filter. Derive its
transfer function.
07
OR
(c) Draw Active second order low pass butter worth filter. Derive its
transfer function
07
Q.3 (a) What is the significance of input impedance value in signal
conditioning circuit. Give input impedance value of op amp 741.
03
(b) Draw the inverting amplifier circuit using op-amp to convert 0 to
2 V signal into 0 to 1 volt output.
04
(c) Draw circuit diagram for astable multivibrator using 555 IC. Select
the component values for 1ms ON time.
07
OR
Q.3 (a) Define PSRR for op-amp. Give its value for 741 op-amp . 03
(b) Draw the non inverting amplifier circuit using op-amp to convert
0 to 3 v input signal into 0 to 1 v output signal.
04
(c) Draw circuit diagram for monostable multivibrator using 555
IC.Select the component values for 3ms ON time.
07
Q.4 (a) Give barkhausen criteria for oscillator design. 03
(b) Design wien bridge oscillator 04
(c) Discuss R-2R type ADC. 07
OR
Q.4 (a) An op-amp circuit designed as an amplifier starts functioning as an
oscillator. What remedy should I apply to bring this circuit out of
oscillation?
03
(b) Design Quadrature oscillator 04
(c) Discuss binary weghted type DAC. 07
Q.5 (a) Discuss the need of isolation amplifier in instrumentation circuits. 03
(b) Draw negetive voltage limiter circuit using op-amp. The design
should limit the output voltage to -5 v.
04
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?IV (NEW) EXAMINATION ? WINTER 2018
Subject Code:2141706 Date:10/12/2018
Subject Name:Analog Signal Processing
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Draw the buffer circuit using op-amp. 03
(b) Design practical integrator circuit to integrate 20Khz.square wave
signal.
04
(c) Discuss three op-amp design of Instrumentation amplifier. Derive
its transfer function.
07
Q.2 (a) Draw dual input unbalanced differential amplifier using
transistors.
03
(b) Give the IC numbers of any op-amps used for loop control and low
error signal conditioning circuits.
04
(c) Draw Active second order high pass butter worth filter. Derive its
transfer function.
07
OR
(c) Draw Active second order low pass butter worth filter. Derive its
transfer function
07
Q.3 (a) What is the significance of input impedance value in signal
conditioning circuit. Give input impedance value of op amp 741.
03
(b) Draw the inverting amplifier circuit using op-amp to convert 0 to
2 V signal into 0 to 1 volt output.
04
(c) Draw circuit diagram for astable multivibrator using 555 IC. Select
the component values for 1ms ON time.
07
OR
Q.3 (a) Define PSRR for op-amp. Give its value for 741 op-amp . 03
(b) Draw the non inverting amplifier circuit using op-amp to convert
0 to 3 v input signal into 0 to 1 v output signal.
04
(c) Draw circuit diagram for monostable multivibrator using 555
IC.Select the component values for 3ms ON time.
07
Q.4 (a) Give barkhausen criteria for oscillator design. 03
(b) Design wien bridge oscillator 04
(c) Discuss R-2R type ADC. 07
OR
Q.4 (a) An op-amp circuit designed as an amplifier starts functioning as an
oscillator. What remedy should I apply to bring this circuit out of
oscillation?
03
(b) Design Quadrature oscillator 04
(c) Discuss binary weghted type DAC. 07
Q.5 (a) Discuss the need of isolation amplifier in instrumentation circuits. 03
(b) Draw negetive voltage limiter circuit using op-amp. The design
should limit the output voltage to -5 v.
04
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2
(c) Design voltage to current conveter circuit for grounded load,using
op-amp. The circuit should produce 1mA current per change in 1
V dc input.
07
OR
Q.5 (a) Draw small signal full wave rectifier circuit using op-amp.This
rectifier should produce 2 V Dc output. Draw the waveforms of
output with indicated values.
03
(b) Draw programmable gain amplifier circuit. 04
(c) Draw the circuit diagram for band pass and band rejection filter. 07
*************
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This post was last modified on 20 February 2020