B.TechSemester 52023-24Integrated CircuitsKEC501

Integrated Circuits (KEC501) - AKTU Question Paper 2023-24

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Integrated Circuits Previous Year Question Paper for B.Tech Semester 5, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 5

Session:2023-24

University:AKTU / UPTU

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Questions Asked in 2023-24

Integrated Circuits (KEC501) — complete question paper · 100 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f .

a
Write the device para meters for IC 741. 2 1
b
List the advantages of Widlar c urrent mirror used in IC 741. 2 1
c
Define 3-dB points in frequency response. 2 2
d
Discuss the advantages of an i nstrumentation amplifier. 2 2
e
Differentiate between voltage c omparator and zero crossing detector. 2 3
f
Analog multiplier can be used a s phase detector. Justify the statement. 2 3
g
Differentiate between PUN and PDN. 2 4
h
Discuss the advantage of master salve flip flop over simple flip flop. 2 4 i. Define voltage-controlled osci llator as a system. 2 5 j. Define Lock range and capture range. 2 5

Section BAttempt any three o f t h e f o l l o w i n g :

a
Calculate the voltages and currents for different transistor s used in the input stage of IC 741 through DC analysis of it
b
Derive of impedance offered by generalized impedance convert er. Also calculate the values of component s to simulate an inductor of 2 𝒎𝑯 using it
c
Explain the operation of asta ble multivibrator using operati onal amplifier with necessary mathema tical expressions and waveforms . Also design a square wave generator using it of frequency 𝟓 𝑲𝑯𝒛
d
Discuss the implementation of D flip flop using CMOS inverte r along with its master salve configuration
e
Explain the generation of squa re and triangular wave of IC 566 with its block diagram and waveforms. Also derive the expression of frequency of generated waveform

Section CAttempt any one p a r t o f t h e f o l l o w i n g :

a
Draw the overall small signa l model of IC 741 and hence calc ulate the overall voltage gain provided by IC 741
b
Calculate the small signal re sistance between node A & A’ for following circuit in terms of device parameters
a
Derive the transfer functions of low pass, high pass and ban d pass filters obtained at different nodes of universal active filter or KHN c ircuit along with their frequency response. Also calculate the bandwid th of bandpass filter, if quality factor is 𝟐𝟓 and center frequency is 2 𝑲𝑯𝒛
b
List the properties of V-I and I-V converters. Also discuss the voltage to current converters with floating and grounded load
a
Discuss the logarithmic amplifier. Also discuss its temperat ure compensation
b
Discuss the triangular wave g eneration using operational amplifier. Also derive the expression of frequency of generated triangular waveform
a
Discuss the realization of clocked SR flip flop using CMOS i nverter. Also discuss its simpler implementation using CMOS
b
Implement and verify the followings using CMOS: i. 2 input NAND gate
a
Discuss the operation of 555 timer IC as astable multivibrat or. Determine the duty cycle and fr equency of 555 timer astable ope ration for 𝑪 ൌ . 𝟎𝟏 𝝁𝒇, 𝑹𝑨 ൌ 𝟐. 𝟐 𝑲 & 𝑹𝑩 ൌ𝟑 . 𝟗 𝑲
b
Explain the working of PLL with its block diagram. Also disc uss the various applications of it

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Repeated Questions — KEC501

Questions that appeared in more than one session, found by comparing 3 years of Integrated Circuits papers (2021-22, 2022-23, 2023-24)

Discuss the advantages of an i nstrumentation amplifier. 2 2