VFSTR UNIVERSITY
III Year B.Tech. ECE I - Semester
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EC317 LINEAR IC’S AND APPLICATIONS
Course Description & Objectives:
This subject introduces the theoretical & circuit aspects of Opamp, timer and
OTAs, which are the backbone for the basics of linear integrated circuits and
to understand the various linear and non-linear applications of opamp.
Course Outcomes:
Upon successful completion of this course, students should be able to:
a. Infer the DC and AC characteristics of operational amplifiers and its effect
on output and their compensation techniques.
b. Elucidate and design the linear and non-linear applications of an opamp
and special application Ics.
c. Explain and compare the working of multivibrators using special
application IC 555 and general purpose opamp.
d. Classify and comprehend the working principle of data converters.
e. Illustrate the function of application specific ICs such as Voltage regulators,
PLL and its application in communication.
UNIT I - Fundamentals of Linear ICs :
Differential DC amplifier, common mode analysis, differential mode analysis,
CMRR, Constant current source in place of RE, design of a differential DC
amplifier using bipolar transistors. 741 operational amplifier, ideal and
practical characteristics, Inverting and Non-inverting configurations, summing
amplifier, difference amplifier.
UNIT II - Application of operational amplifiers :
Opamp as instrumentation amplifier, integrator and lossy integrator, as
differentiator and practical differentiator, logarithmic amplifier, astable
multivibrator, monostable multivibrator, comparators and Schmitt trigger, RC
phase shift and wien bridge oscillators.
Electronics & Communication Engineering
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VFSTR UNIVERSITY
UNIT III - Active filters and Regulators :
Application of op-amp as active filter, Butterworth first and second order filters,
low pass, high pass, band pass and band reject filters, design of practical
filters. 3-terminal regulators, LM723 regulator.
UNIT IV - TIMER & PLL :
Functional diagram of 555 timer, timer as astable and monostable
multivibrators, Timer as FSK generator, Voltage Controlled Oscillator (VCO),
Phase Lock Loop (PLL), Capture range, Lock range, PLL 565 and applications.
UNIT V - Data converter & Operational Transconductance Amplifier (OTA):
Weighted resistor DAC, R-2R ladder DAC, Inverted R-2R ladder DAC, Parallel
comparator ADC, Successive approximation ADC and Dual slope ADC,
characteristics of A/D and D/A converters. Basic configuration of an OTA, OTA
applications: OTA as Oscillators.
TEXT BOOKS :
1.
D. Roy Choudhury, “Linear Integrated Circuits”, 4th ed., New Age
International(p)Ltd, , 2003.
2.
Ramakant A. Gayakwad, “Op-amps and Linear Integrated Circuits”, 3rd
ed., PHI, 2001
REFERENCE BOOKS :
1.
Tahira Parveen, “Operational Transconductance Amplifier and Analog
Integrated Circuits “ , I K International Publishing House Pvt. Ltd .,2010
2.
G.B.Clayton, Operational Amplifiers, Butterworth, 1971.
3.
Sergio Franco, “Design with Operational Amplifiers & Analog Integrated
Circuits”, McGraw Hill,1988.
4.
Millman, “Micro Electronics”, McGraw Hill, 1988.
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Electronics & Communication Engineering