SRM University 2007 B.Tech Electronics and Communications Engineering BANK FOR LINEAR INTEGRATED CIRCUITS - Question Paper

( identical AS EE305, IC204 & BM202)

FOR STUDENTS ADMITTED FROM THE YEAR 2004-2005








II YEAR / IV SEMESTER ECE





SCHOOL OF ELECTRONICS AND COMMUNICATION ENGINEERING
S.R.M. INSTITUTE OF SCIENCE & TECHNOLOGY
DEEMED UNIVERSITY
S.R.M. NAGAR, KATTANKULATHUR - 603203
EC 204 LINEAR INTEGRATED CIRCUITS

UNIT-I OP-AMP FUNDAMENTALS, CHARACTERISTICS & APPLICATIONS
PART - A
1. What are the ideal characteristics of op-amp?
2. Draw the equivalent circuit of practical op-amp?
3. Discuss the nature of output in open loop configuration of op-amp?
4. Write the gains of inverting and non inverting op-amp?
5. What is a voltage follower? Sketch the circuit.
6. What is a differential amplifier?
7. What is difference mode and common mode gains?
8. Define CMRR.
9. Draw the block diagram of Operational Amplifier.
10. What is input bias current?
11. What is bias current compensation?
12. What is input offset current?
13. What is input offset voltage?
14. Define thermal drift.
15. What is the need for frequency compensation?
16. What is dominant pole compensation?
17. What is pole zero compensation?
18. What do you mean by internal compensation?
19. Define slew rate.
20. What does the term roll off mean?
21. With a neat sketch, show how an op-amp can be used as
a. Scale changer
b. Inverter
22. What are the features of an instrumentation amplifier?
23. Give a few linear and non-linear application of Op-amp.
24. Draw a circuit to obtain VO= (V1+V2)-(V3+V4)
25. What is AC amplifier?
26. What is Trans-conductance amplifier?
27. What is precision diode?
28. What is clipper? Mention its kinds.
29. What is clamper? Mention its kinds.
30. Write the applications of Sample and Hold (S/H) circuit.
31. What is log amplifier? Draw the circuit of a basic log amplifier.
32. Draw the circuit of differentiator and write the expression for the output voltage Vo.
33. Draw the circuit of integrator and write the expression for the output voltage Vo
34. What do you mean by programmable Trans Conductance amplifier? Mention its applications.

PART –B
35. Explain in detail the inverting &non inverting amplifier and derive the expression for closed loop gain.
36. Explain the DC characteristics of op-amp.
37. Explain the frequency compensation techniques in detail.
38. With neat sketches of circuit diagram, write short notes on
a) Summing amplifier and Subtractor.
b) Divider
39. Explain instrumentation amplifier with a neat circuit diagram and mention its features.
40. With neat sketches of circuit diagram and waveforms, discuss Half-wave and Full Wave rectifiers.
41. (a) Draw the Sample and Hold Circuit and discuss it. (5 Marks)
(b) Write short notes on Integrator and Differentiator with a neat diagram.

Earning:   Approval pending.