STUPIDSID
1 (a)
Draw hybrid π equivalent circuit for common emitter transistor. Also derive the
expression for input conductance (gb'e).
7 M
1 (b)
Write a short note on two stages RC-Coupled amplifier.
7 M
2 (a)
Define the following terms:
1) Rise time
(2) Noise margin
(3) Non linear distortion
(4) Slew rate
(5) CMRR
(6) Fan out
(7) Tilt
1) Rise time
(2) Noise margin
(3) Non linear distortion
(4) Slew rate
(5) CMRR
(6) Fan out
(7) Tilt
7 M
2 (b)
Draw the basic block diagram of op-amp and explain each block.
7 M
2 (c)
What is an op-amp? List out the characteristics of ideal op-amp. Derive the expression of voltage gain for closed loop inverting amplifier.
7 M
3 (a)
Draw and explain current series feedback amplifier.
7 M
3 (b)
Define positive and negative feedback. Also derive the expression of transfer
gain with positive and negative feedback with the use of block diagram.
7 M
3 (c)
Derive output resistance for voltage shunt feedback amplifier and current shunt feedback amplifier.
7 M
3 (d)
List out the steps to identify feedback topology and analysis of a feedback
Amplifier.
7 M
4 (a)
Classify the oscillator. Also explain RC-phase shift oscillator with neat circuit
Diagram.
7 M
4 (b)
In a transistorized Hartley oscillator the two inductances are 2mH and 20?H
while the frequency is to be changed from 950kHz to 2050 kHz. Calculate the
range over which the capacitor is to be varied.
7 M
4 (c)
What is an oscillator? State and derive the Barkhausen criterion required for
Oscillation.
7 M
4 (d)
What is differential amplifier? Draw and explain emitter coupled differential
Amplifier.
7 M
5 (a)
Give the comparison between various logic families.
7 M
5 (b)
Write short note on: 3-bit R-2R ladder type DAC.
7 M
5 (c)
Classify the logic families. Draw and explain 2-input DTL NAND gate.
7 M
5 (d)
Draw and explain the counter type A/D converter.
7 M
More question papers from Analog Circuit Design