Reg No.:_ Name:

Max. Marks: 100

b)
2 a)
b)
3 ஐ
b)
4 a)
b)
ട്‌ ஐ
b)
6 a)
b)

D1033 Pages: 2

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FOURTH SEMESTER B.TECH DEGREE EXAMINATION(R&S), MAY 2019

Course Code: EC204
Course Name: ANALOG INTEGRATED CIRCUITS (AE, EC)

PARTA
Answer any two full questions, each carries 15 marks.

Derive the equation for closed loop voltage gain, input resistance with feedback,
output resistance with feedback and total output offset voltage with feedback of a
voltage series feedback amplifier.
Define slew rate. What are its causes? Derive the equation for maximum input
frequency at which an undistorted signal is obtained in terms of slew rate?
Design an inverting adder circuit using opamp to get the output expression as
Vo=--(0.2V1+2V2+20 V3) , where V1, V2 and V3 are the inputs.
Derive the equation for the output voltage for an averaging circuit using opamp.
Draw the equivalent circuit of an operational amplifier. Explain voltage transfer
characteristics of an operational amplifier.
Define a)Power Supply Rejection Ratio b) Input Offset Current
PART B

Answer any two full questions, each carries 15 marks.
Explain the working of full wave precision rectifier.
Derive the equation for output voltage of an integrator. Why is it called a lossy
integrator?
Explain how switching takes place at UTP and LTP in a Schmitt trigger. Plot the
hysteresis curve.
What is a zero crossing detector?
Design a first order low pass filter at a cut-off frequency of 2kHz with a pass band
gain of 3
Prove that the input voltage is converted into corresponding output current in a

voltage to current converter with floating load.

Page 1 of 2

Duration: 3 Hours

Marks

(10)

(5)

(7)

(8)
(8)

(7)

(9)
(6)

(10)

(5)
(8)

(7)