B.E-B.E Electronics and Instrumentation Engineering 3rd Sem 070300005 – Linear Integrated Circuits and Applications(Anna University Chennai-2013)
B.E/B.TECH. DEGREE EXAMINATION, MAY/JUNE 2013
Third Semester
Electronics and Instrumentation Engineering
070300005 – Linear Integrated Circuits and Applications
(Regulation 2007)
PART A-(10*2=20 marks)
1. What is the purpose of oxidation?
2. What are the popular IC packages available?
3. Mention the characteristics of an ideal op-amp.
4. What causes slew rate?
5. Write the gain of an inverting amplifier.
6. What are the limitations of an basic differentiator circuit?
7. What do you mean by a precision diode?
8. List the applications of Log amplifiers.
9. What are the three stages through which PLL operates?
10. Define settling time of an ADC.
PART B (5*16=80 marks)
11. (a) Explain in detail the fabrication of ICs using silicon planar technology.
Or
(b) Explain how a monolithic diode can be fabricated.
12. (a) Design an active load for an emitter-coupled pair(differential amplifier) and perform a detailed analysis to find its differential mode gain and the output resistance.
Or
(b) Obtain the frequency response of an open-loop op-amp and discuss about the methods of frequency compensation.
13. (a) Explain the working of an instrumentation amplifier with a circuit. Derive the Expression for GAIN. Give its characteristics and applications.
Or
(b) Draw the circuit of the first order and second order butter worth active low pass filter and derive its transfer functions.
14. (a) What are the requirements for producing sustained oscillations in feedback circuits? Discuss any two audio frequency oscillators.
Or
(b) (i) Explain how a comparator can be used as a zero crossing detector.
(ii) Explain the operation of basic voltage to frequency converter.
15. (a) Draw the block diagram of an Astable multivibrator using 555 timer and derive an expression for its frequency of oscillations.
Or
(b) (i) Draw and explain the functional block diagram of a 723 regulator.
(ii) Explain the operation of dual scope ADC.
| Earning: ₹ 8.70/- |
