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Reg. No:

(A)

SRI RAMAKRISHNA ENGINEERING COLLEGE, COIMBATORE

AUTONOMOUS EXAMINATIONS APR / MAY 2013

B.E / B.TECH / B.Sc / MCA / M.E

B.E VIII SEMESTER

SUBJECT CODE 07AD405 SUBJECT NAMELINEAR INTEGRATED CIRCUITS

Answer ALL questions

Duration: 3 Hours Maximum: 100 Marks

PART A (10 x 2 = 20 Marks)

1. What are the basic processes involved in fabricating ICs using planar technology?

2. What is metallization?

3. List out the ideal characteristics of OP-AMP?

4. Define thermal drift

5. List the features of instrumentation amplifier:

6. What is a Bistable multivibrator?

7. What are the applications of 555 Timer?

8. Define lock range.

9. Define line regulation.

10. Mention the advantages of opto-couplers:

PART B (5 x 16 = 80 Marks)

11.

a) Explain the fabrication steps of epitaxial growth , masking and etching of

Monolithic ICs

16

(OR)

b) Explain the realization of resistors in integrated circuits. 16

12. a) Explain the AC characteristics of ideal OP- AMP. 16

Revised Regulation- 2008

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(OR)

b)

i) Explain the operation of voltage shunt feedback amplifier and derive for

its voltage gain

8

ii) Explain the operation of OP-AMP as summing amplifier. 8

13.

a)

i) Explain the operation of instrumentation amplifier with neat circuit

diagram.

8

ii) Design and explain the operation of positive and negative clipper for the

required output voltage.

8

(OR)

b)

i) Explain the operation of successive approximation analog to digital and

integration type A/D converter.

16

14. a) i) Draw the functional block diagram and explain the construction of

555timer square wave generator.

16

(OR)

b)

i) Explain the operation of voltage controlled oscillator.

ii) What are the types of analog multipliers and explain the operation of IC

15. a)

i) Design the circuit for the regulated output voltage using LM723voltage

regulator.

8

ii) Draw the block diagram of LM 380 power amplifier.

8

(OR)

b)

i) Draw the functional block diagram of ICL 8038 function generator and

explain its operation.

8

ii) Explain the operation of OPTO COUPLER and Mention its applications. 8

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