GTU BE 2019 Summer Question Papers || Gujarat Technological University
Subject Code: 2140305
GUJARAT TECHNOLOGICAL UNIVERSITY
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SEMESTER- IV(NEW) — EXAMINATION — SUMMER 2019
Subject Name: Analog Circuits-11
Time: 02:30 PM TO 05:00 PM
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| Q.1 | (a) Define Signal to Noise ratio, CMRR and Gain of the amplifier. | 03 |
| (b) Explain the role of isolation amplifier in Bio-medical field. | 04 | |
| (c) Explain Differential Chopper Amplifier. | 07 | |
| Q.2 | (a) What are the advantages of Instrumentation amplifier over differential amplifier? | 03 |
| (b) Derive gain equation for instrumentation amplifier. | 04 | |
| (c) Explain the construction and working of DSO in detail. | 07 | |
| OR | ||
| (a) Draw the block diagram of function generator and explain its function. | 07 | |
| Q.3 | (a) Explain Notch filter. | 03 |
| (b) Draw and explain opto-isolator. | 04 | |
| (c) Design all pass filter having operating frequency 1KHz and phase angle 90 degree. Assume C=0.01 pF. | 07 | |
| OR | ||
| (a) Design a first order High pass filter at a high cutoff frequency of 1 KHz. | 03 | |
| (b) Write a short note on transformer coupled isolation amplifiers. | 04 | |
| (c) Write short notes on Tschebyscheff low ‘pass filters and Bessel low pass filters. | 07 | |
| Q.4 | (a) Explain Thermal Noise and Burst Noise. | 03 |
| (b) Define Inductive and Capacitive-crosstalk. | 04 | |
| (c) Explain switch mode power supply with diagram. | 07 | |
| OR | ||
| (a) Compare RMS and P-P Noise. | 03 | |
| (b) Explain common Grounding rules for good design. | 04 | |
| (c) Explain different the Electrostatic discharge (ESD) protection techniques. | 07 | |
| Q.5 | (a) Explain Heat sink function. | 03 |
| (b) Discuss technical aspects of AM Transmitter and receiver. | 04 | |
| (c) Explain basic concept of AM modulation. | 07 | |
| OR | ||
| (a) What is the need of pulse modulation? | 03 | |
| (b) Discuss the FM demodulation techniques. | 04 | |
| (c) Explain pulse code modulation in detail. | 07 | |
Date: 15/05/2019
Total Marks: 70
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