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Design With Linear Integrated Circuits Question Paper - Dec 18 - Electronics Engineering (Semester 5) - Mumbai University (MU)
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Design With Linear Integrated Circuits - Dec 18
Electronics Engineering (Semester 5)
Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.
1.a.
Define following OPAMP parameters.
1) C.M.R.R 2) Slew rate 3) Input offset voltage 4) Input bias current
5) output resistance
(5 marks)
00
1.b.
What are comparators? How are they classified, state applications of
comparators.
(5 marks)
00
1.c.
What are active filters? How are they classified? State its application.
(5 marks)
00
1.d.
Draw the block diagram and explain the operation of switching
regulator.
(5 marks)
00
2.a.
Design second order high pass filter using OPAMP at f0= 1KHZ and
with gain at 2.
(10 marks)
00
2.b.
Draw block diagram and explain function of each block of operational
amplifier.
(10 marks)
00
3.a.
Draw circuit diagram of temperature compensated log amplifier and
explain its operation. State its applications.
(10 marks)
00
3.b.
Draw circuit diagram and explain the operation of parallel comparator
(flash type) ADC. State its advantages and disadvantages.
(10 marks)
00
4.a.
Design a monostable multivibrator to produce an output pulse 10 seconds wide. Draw neat circuit diagram and all the waveforms.
(10 marks)
00
4.b.
Draw the circuit diagram and explain the operation of triangular wave generator using OPAMP. Explain the modifications required to obtain saw tooth wave output.
(10 marks)
00
5.a.
Draw block diagram and explain the operation of PLL (phase locked 100P). State its applications.
(10 marks)
00
5.b.
Explain with circuit diagram
1. short circuit protection
2.fold back current limiting in 723 IC voltage regulator.
(10 marks)
00
Write notes on following(Any two)
(10 marks)
00
6.a. RC phase shitt oscillator using OPAMA.
6.b.
Schmitt trigger and its applications.
(10 marks)
00
6.c.
Instrumentation amplifier.
(10 marks)
00
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