10
11

12

13

14

15

16

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18

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20

b)

a)
b)

R3964

operating point.

What is the effect of cascading in gain and bandwidth of

Amplifier?

What are the conditions for getting sustained oscillations?

Mention the difference between positive and negative feedback? Give one
application of each.

PART D
Answer any two full questions, each carries 9 marks.
Voltage divider biasing is most widely used one in amplifiers. Why?
Explain with the help of required equations and circuit.
Design a Hartley oscillator to generate a frequency of 150KHz.
Draw the circuit of RC coupled amplifier and explain the function of each
component.
With circuit diagram and design equations explain the working of a
monostable multivibrator
PART E
Answer any four full questions, each carries 10 marks.

What are the features of ideal op-amp?
With circuits and equations show that an op-amp can act as integrator ,
differentiator, adder, subtractor,
Define: (1) Slew rate, (2) CMRR, (3) offset voltage (4) Offset current
What are their practical values for parameters of op-amp IC 741
With circuit , relevant equations and waveforms explain the working of a
Schmit trigger

Describe the working of a binary weighted D/A Converter, with
example..
Draw the circuit and frequency response of active lowpass and high pass
filters Also draw the circuit of a second order active low pass filter
Explain the working of any one type of ADC.
What are their importantspecifications?
With functional block diagram, explain the working of 555 Timer IC.
Write design equations and pin out of 555 TIMER IC working as astable

multivibratot to generate a wave form of 1KHz., with 50% duty cycle.
ദ്വയം

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