EE6303 Linear
Integrated Circuits And Applications,
Second
year, Department of Electrical and Electronics Engineering, Model Exam
Questions.
Answer ALL Questions
PART A – (10*2 = 10 Marks)
1.
Write
the basic chemical reaction in the epitaxial growth process of pure silicon.
2.
What
are the advantages of integrated circuits over discrete circuits?
3.
Mention
the important ideal characteristics of an OPAMP.
4.
What
are the different kinds of packages of IC741?
5.
What
is the need for an instrumentation amplifier?
6.
Define
conversion time of ADC.
7.
List
any four applications of 555 timer in astable mode of operation.
8.
Define
capture range of PLL.
9.
Why
current boosting is done in 723 regulations?
10. Mention the
important advantages of Opto-couplers.
PART B – (5*13 = 65Marks)
11. a) i) Explain the process of epitaxial growth in
IC fabrication process with next diagrams.
ii) With neat sketches explain the
fabrication of diodes.
OR
b) i) Explain the different isolation
techniques.
ii) Describe in detail about the diffusion
process of IC fabrication.
12. a) i) Explain in detail about frequency
compensation applied to OPAMP.
OR
b) Draw and
explain the working of operational amplifier as
i) Integrator.
ii)Differentiator.
13. a) Explain the
following applications of operational amplifiers.
i) Voltage to current converter.
ii) Clamper.
OR
b) Explain in detail the working of
i) Weighted resistor type DAC.
ii) Dual slope type ADC.
14. a) i) Explain
the working of voltage control oscillators.
ii) What is PLL? Explain the
application as frequency multiplier.
OR
b) Explain the
astable and bistable operation of IC 555 with necessary waveforms.
15.a) i)Draw and explain the application
of IC723 as low voltage regulator and high voltage
Regulator.
OR
b) i).Explain the block diagram
of ICL8038 function generator IC.
ii).Explain about switching
regulator.
16.explain the operation of power amplifier.
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