Anna University Trichy 2010 B.E Electronics & Communication Engineering ECE Linear integrated circuits - Question Paper

B.E Electronics & Communication Engineering Linear integrated circuits ques. paper

PART-A
(20*2=40MARKS)
ans ALL ques.

1. Mention the advantages of ICs over discrete components?
2. What is the use of buried n + layer in Monolithic IC transistor?
3. describe Sheet resistance.
4. elaborate the 2 common methods for obtaining integrated capacitors?
5. Draw the circuit of Op amp as clamper
6. describe band-pass filter
7. Write transfer function of op amp as integrator
8. describe comparator and also draw its transfer characteristics
9. Briefly discuss analog multiplication process.
10. What is Schmitt trigger? Mention its application.
11. describe FSK modulation
12. describe Lock-in-Range and capture range of PLL.
13. Draw the transfer characteristics of a 3-bit DAC
14. compute the values of the LSB,MSB and full scale output for an 8-bit DAC for the 0 to 10V range
15. provide the disadvantage of flash kind A/D converter
16. Which is the fastest ADC and why?
17. Write the frequency of oscillation(f0) formula for triangular wave generator
18. How frequency to voltage converted in OP AMP.
19. describe monolithic switching regulator
20. What do you mean by opto-coupler?


PART-B
(5*12=60 MARKS)
ans ANY 5 ques.

21. a) discuss in detail about Widlar current source eight
b) Briefly discuss about slew rate of an op-amp 4
22. a) explain in detail about the AC performance characteristics of an op-amp 8
b) What is current mirror? discuss. 4
23. a) How op amp can be used as an antilog amplifier? 6
b) discuss about op-amp integrator 6
24. a) explain in detail about Gilbert multiplier cell 6
b) With neat block diagram discuss the operating principles of PLL 6
25. a) discuss in detail about Voltage controlled oscillator eight
b) define the application of PLL as AM detection 4
26. a) discuss the operation of successive approximation kind A/D converter 8
b) What output voltage would be produced by a D/A converter whose output range is 0 to 10V 4
and whose input binary number is (1) 10(for a 2-bit D/A converter) (2) 0110(for a 4-bit DAC)?
27. a) With neat diagram discuss the operation of instrumentation amplifier 8
b) Design an inverting summing amplifier using op-amp 4
28. a) discuss the operation of a op-amp 8
b) Write short notes on operation on function generator 4

Earning:   Approval pending.