EC-502/3312

O
B.Tech. [E&C] (Semester-V) Exam-2018

Analog Integrated Circuits

Time: Three Hours

Maximum Marks: 100

Note: Attempt questions from all the sections.

Section-A
(Short Answer Type Questions)
Note: Attempt any ten questions. Each question carries 4
marks. (4x10-40)

Explain Differentiator circuit using of Amp & derive its

relation.

Draw AC& DC Characteristics of Basic of Amp.

Explain the working of Instrumentation Amplifier

With the help of block diagram, cxplain the working of

sawtooth generator.

EC-502/3312-L-1 20
5.
2)
What are basic requirements of sinusoidal oscillator?

6. Write a short note or twin-T oscillators.

Discuss the Basic Fundamentals of Phase locked

loop.
Determine the transfer function for the give circuit.
R

C
out

Verify that the following equation gives the correct

impedance when converted back to the Frequency
domain.

. Differentiate Active Filter and passive Filters. List at

least 04 differences.

11. Disuses about the sallen- key unity gain filter and derive
its required relation.

12 Explain the working of peak detector.

EC-502/3312-L-120
 3

3.) Write a short note on

(3)
sample and hold circuit.

4. Explain monó stable Multivibrator with the help of its

Block diagram or circuit
diagram.
5. What do you understand with fixed
voltage regulators?
Explain.

Section-B
Long Answer Type Questions)
Note: Attempt any three questions. Each question carries
20 marks.
(20x3-60)

Disuses in detail about the various Transistor

regulators
and OP amps regulators.

With the help of suitable diagram explain the working of

logarithmic & antilogarithmic amplifiers. Also derives
the required relations.

Explain the working of High pass active filter and derive

its relations. Also differentiate low pass filter, High pass
filter& Band pass filter.
EC-502/3312-1-120
 What do you mean by CCVS and VCCS Explain
detail with the belp of suitabie diagram Write thc
differences between CCVS and VCCS.

) Define the following in detail

(a) Inverting Amplificer & Non Inverting Amplifier

(B) Slew Rate

(c) Current Mirror

() Active load
(e) Virtual Grand

Disuse 1C $55 time in detail with ste

Block diagram
working. & appliestions Abo derive the relation for
dutz cycle
 5EC-502/3312
B.
Tech. [E&C] (Semester-I)
Examination-2017
Analog Integrated Circuits
Time: Three Hours
Maximum Marks: 100

Note: Attempt questions from all the sections.

Section-A
(Short Answer Type Questions)
Note: Attempt any ten questions. Each
4 marks.
question carries
(4x10=40)
1. Draw and explain working of a differential amplifier.

Explain voltage controlled voltage source model of an

op-amp.

3. Discuss op-amp as an integrator.

4. Write short note on instrumentation amplifier

EC-502-3312-- a
 Explain
6
the advantage
of a erystal oscilat
pair w ser e tig
generator
which uses a n RC

Draw the block diagram and explain fhe wfkn

triangle wave generator. L

Explain wein bridge oscillator in detail Aj derrut

its trequency of oscillation.

Explain phase locked loop as a irequency solo

configuration with the help of block diagram

Determine the transfer function for the gven cirour

10 Discuss the first order low pure active filher usin

block diagram. Also derive its
cquation r w
function.
Write a short note on state variable ilker
 3

12
12. Explain Schmitt trigger with help of diagram.
13. What do you mean by Precision Rectifier? How it can
works? Explain. v

Discuss about op-amp

regulators.
Write a short note on SMPS.

Section-B
(Long Answer Type Questions)
Note: Attempt any three questions. Each question carries
20 marks.
(20x3=60))
1. (a) Explain the working of Zener diode with the
help of its Biasing circuits and VI
characteristics. Also discuss working of ZenerT
diode as a Voltage Regulator.
(b) Write a detailed note on IC Regulators.

2 With the help of suitable diagram, explain the

working of logarithmic and antilogarithmic
amplifiers. Also derive the required relations.

3. Explain the working of second order la pass filter and

derive the relation for transfer function.

EC-502-33 12-B- J20

 What do you mean by CCVS and vCCS? Explain in
4.
detail with the help of suitable diagram. Write the
difference between CCVS and VCCS.

5. Explain the working of IC function generator

with its block diagram.

(6) Write a short note on PLL synthesizer.

6. Define the following:U

(a) Current Mirror

(b) Active Load

(c) Virtual Ground

(d) Level Shifter

(e) CMMR

EC-502-3312-B- 2o
 EC-502/3312
B.Tech. [E&C] (Semester-ll) Exam.-2016

Analog Integrated Circuits

Time Three Hours

Maximum Marks: 100

Note Attempt questions from all sections.

SECTION A
(Short-answer Type Questions)
Note Attempt any ten questions. Each question
carries 4 marks.
10x4-40

Explain the PIN diagram of operational

amplifier.

2Explain the working of op-amp as a difference

amplifier
3. Explain the working of peak detector
Explain Non-inverting comparator
with wave
form.

[P. T. O.
EC-502/3312
2

Explain basic circuit of logarithm amplifier,

wide-bond pass filter.

Explain

any two applications of I to V converter

Explain
Write a short note on Analog Multiplier.

Compare Analog and digital ilter.

10 Explain the working of sample & hold ciruit.

11 Find the output of following operational

amplifie.u

ok

loy o
5K
W

Explain the first order

Low pass filter.
Draw & explain the working of triangular wave

generator
 3 EC-502/3312
(11
4) Explain the applications of op-amp.
5Explain the working of Adder. , Sraukor

SECTION B
(Long Answer type questions)
Note Attempt any three questions. Each
question carries 20 marks. 3x20-60
Draw and
expiain temperatue co.npensaled 3
logrithm amplifierMah
2. Explain the working of instrumentational
amplifier. 1 n N a badiT
3. Explain the working of fanalog voltage multiplier
using log and antilog amplifier.
Explain IC Regulator with neat & clean block

diagram.
327 (7-14)fuge
Explain. the working ofl2nd orde high pass
filter. a ( A 6 2

-0
 (10 1)
EC-502/3312

13Explain the basic building blocks of a PLL

14 Draw the circuit of a precision rectifier and

explain its working

Write a short note on Analog Multiplier

SECTION B
(Long-answer Type Questions)
Note Attempt any three questions. Each question
carries 20 marks. 20x3-60
Draw and explain Anti-Log Amplifier. How
temperature Compensation is achieved in Anti
log amplifier?

What is an instrumentation amplifier and where it

is used? State its special features. explain with

the help of neat diagram the operation of typical

instrumentation amplifier

3 Explain the operation of Wien Bridge oscillator

For the Wien Bridge oscillator shown in fig
Calculate R, and C such thakit oscillate at 1Kl1
N

IPTO
n
 EC-502/3312

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4K
4K

What is duty cycle? Derive the expressionfor

duty cycle of an astable multivibrator.

5. What is PLL? Describe transfer characteristic

PLL. Mention any five application of PLL

wireless communication.

the following
Write short note on

(a) 555 timer

(b) Log Amplifier

Zero crossing Detector

(c)
Wave Generator
(d) Square
 EC-502/3312 2

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4. Explain any two application of voltage to current

converter.

6 Draw and explain the Twin-T oscillator.

With the help of circuit diagram, explain the
operation of first order high pass filter.

7 Explain a monostable multivibrator circuit with the

help of wave form.

Explain the four application of comparator.

9/ What is the function of a
voltage regulator.
v10/ Comapre Active & Passive filters

(11. Draw the functional

diagram of 723 regulator
(12, Explain the function of RESET in 555 timer.
 (12 EC-502/3312

B.Tech. (E&C) (Semester-III)

Exam.-2015

Analog Integrated Circuits

Time: Three Hours

Maximum Marks: 100

Note Attempt questions from all sectionss.

SECTION A
(Short-answer Type Questions)
Note Attempt any ten questions. Each question
carries 04 marks. 10x4-40

1 Explain the output stage of 741 IC.

What is Slew rate? Give the relation between

2 SR
and fo

Obtain CMRR for the circuit shown if figure

below

[P. T.O.
 1 EC-502/3312
B. Tech. (E&C) (Semester-1ll) Exam.-2014

Analog Integrated Circuits

Time: Three Hours Maximum Marks 100

Note: Attempt questions from ail the sections.

Section-A
(Short Answer Type Questions)
Note: Attempt any ten questions. Each question carries 4
marks.
(4x1040)

Explain op-AMP with the help of block

list the characteristics of ideal diagram. Also
op-AMP.
Derive the expression for
AMP.
integrating cireits of a
op-

Explain voltage control voltage source with suitahle

diagram.
C4) Explain a square wave generator with a
eryst.t

EC-502 3312-A
 C17
F'rom circuit given below, calculate
and the
amplitude of the triangular
wave
(a) The
Square Wave
Caleulate the signal frequcicy

0.14F w

9V
wwww. 100K2 820K
www- ww-
1OKD
9V

What is the meaning of phase locking? Explain its

6
fundamentals.

Design a filter using the Sallen-key unit gain low pass

active filter with thc following specifications.
(a Roll off rate 40d1B/decade
(b Gain of 5 at DC

(C) P'ass band flat as possible

as

(d Critical 1rcqency 2KU

:xplain sinple op AMI band pase iller

2/:12A10
 18 3

Compare Active & Passive filters.

10 Explain a basic operational transconductance voltage

amplifier.

( 11. Write a short note on sample and hold circuit.

What are the multiplier integrated cireuits? Explain its

characteristics.

13. Explain switch mode power supply in detail.

What do you understand by integrated circuits

regulators? Explain.

Write a short notc on fixed voltage regulators.

Section-B

(Long Answer Type Questions)

carries
Oe Attempt any three questions. Each question
(20x3-60)
equal marks.

&
1. with suitable diagram
(a) Explain differentiation
voltage.
derive its expression for output

an input
differentiator to differentiate
Design a
HHz.
fror 10 Hz to 1000
Signal that varies
f O ? / 3 3 1 2 - A - 1 2 0
 Explain in detail various types of Ramp generators with
2 forms.
suitable circuit diagram & wave

3 Derive the transfer function and gain and phase

equations for a first order filter and a second order low
pass filter.

Draw the schematic and explain the operation of each of

the following applications using a multiplier IC.
(a) Frequency doubler
(b True power converter
(c) Voltage controlled amplifier
(d) Divider

What is a three-terminal regulator? Explain all four

characteristics of these terminal regulators.

6. Write short note on the following.

CCVS and VCCS
(b) IC 555 Timer
(c) State Variable Filter
(d) Monostable multi-vibrator

EC-502/3312-A-120