Download GTU B.Tech 2020 Summer 4th Sem 3141002 Analog Circuit Design Question Paper

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Subject Code: 3141002

GUJARAT TECHNOLOGICAL UNIVERSITY

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Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1

1. List ideal characteristics of OP-AMP. [03]
2. Define following terms. [04]
   

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   Slew Rate, CMRR, SVRR, I/P offset voltage.
3. Explain inverting differentiator circuit using OP-AMP. [07]

Q.2

1. Derive gain expression for voltage series F/B amplifier using OP-AMP. [03]
2. Explain window detector using OP-AMP. [04]

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3. Write and explain differential amplifier using two OP-AMP. [07]

OR

1. Explain Schmitt trigger circuit operation using OP-AMP. [03]
2. Explain circuit made up of OP-AMP that does subtraction. [04]
3. Explain All pass filter using OP-AMP. [07]

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Q.3

1. Explain chebyshev filter using OP-AMP with derivations. [03]
2. Define following terms. [04]
   Lock Range for PLL, Capture Range for PLL, Frequency Stability for Oscillators.
3. Explain class B push pull power amplifier. [07]

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OR

1. Draw and explain triangular wave generator using OP-AMP. [03]
2. Explain I to V converter using OP-AMP. [04]
3. Explain phase shift oscillator using OP-AMP in detail. [07]

Q.4

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1. Explain CE short-circuit-current gain including resistive load R_L. [03]
2. Explain voltage limiter circuit using OP-AMP with suitable example. [04]
3. Draw and explain class A power amplifier. [07]

OR

1. Derive expression for trans-conductance g_m in Hybrid — II model. [03]

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2. Design Monstable multivibrator for T_p = 11 millisecond, take C = 0.01 milliferad. [04]
3. Explain PLL using functional block diagram. [07]

Q.5

1. Explain 555 A-stable multivibrator. [03]
2. Write short note on adjustable voltage regulator. [04]

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3. Design A-stable multivibrator using IC 555 for T_on = 50% of T, take F=1 KHz, C = 0.1 milliferad. [07]

OR

1. Explain Monostable multivibrator using IC 555. [07]

Date:26/10/2020
Total Marks: 70

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