OP-AMP AND LINEAR ICS LABORATORY (18EEL48)

OP-AMP AND LINEAR ICS LABORATORY

Course Code 18EEL48 CIE Marks 40
Number of Practical Hours/Week 0:2:2 SEE Marks 60
Credits 02 Exam Hours 03

Course Learning Objectives:

· To conduct different experiments using OP-Amps
· To conduct experiments using Linear IC’s
a) Study of pin details, specifications, application features of IC741 (LM741) and IC555 (Timer) through corresponding datasheets (Datasheets are instruction manuals for electronic components. They explain exactly what a component does and how to use it.).
b) Comparison of output performance quantity of an Operational Amplifier obtained by rigging up the
circuit with the ideal value of
(i) A Non–Inverting Amplifier (Vout=AVin) (ii) An Inverting Amplifier (Vout=-AVin) (iii) A Difference
Amplifier (Vout=-A( Vp-Vin)) (iv) A Difference Amplifier with floating inputs
(Vout=AVin) (v) A Non – Inverting Amplifier with negative feedback (ii) An Inverting Amplifier with
negative and output transfer characteristics to analyze and conclude that op-amps are rarely used in openloop.
c) Plot of input and output transfer characteristics to analyze and conclude that op-amps are rarely used in open-loop.
d) Testing of op-amp.



1 Design and verify a precision full wave rectifier. Determine the performance parameters.  

2 Design and realize to analyse the frequency response of an op – amp amplifier under inverting and
non - inverting configuration for a given gain.

3 Design and verify the output waveform of an op – amp RC phase shift oscillator for a desired frequency.

4 Design and realize Schmitt trigger circuit using an op – amp for desired upper trip point (UTP) and
lower trip point (LTP).

5 Verify the operation of an op – amp as (a) voltage comparator circuit and (b) zero crossing detector.

6 Design and verify the operation of op – amp as an (a) adder (b) subtractor (c) integrator and (d)
differentiator.

7 Design and realize an op – amp based first order Butterworth (a) low pass (b) high pass and (c) band
pass filters for a given cut off frequency/frequencies to verify the frequency response characteristic.

8 Design and realize an op-amp based function generator to generate sine, square and triangular waves of the desired frequency.

9 Design and realization of R-2R ladder DAC.

10 Realization of Two-bit Flash ADC

11 Design and verify an IC 555 timer-based pulse generator for the specified pulse.

12 Designing of Fixed voltage power supply (voltage regulator) using IC regulators 78 series and 79 series.

Course Outcomes: At the end of the course the student will be able to:

· To conduct an experiment to determine the characteristic parameters of OP-Amp
· To design test the OP-Amp as Amplifier, adder, subtractor, differentiator and integrator.
· To design test the OP-Amp as oscillators and filters.
· Design and study of Linear IC’s as multivibrator power supplies.

Conduct of Practical Examination:

1. All laboratory experiments are to be included for practical examination.
2. Breakup of marks and the instructions printed on the cover page of the answer script to be strictly adhered to by the examiners.
3. Students can pick one experiment from the questions lot prepared by the examiners.
4. Change of experiment is allowed only once and 15% Marks allotted to the procedure part to be made zero.
Note: Also verify the results of any four experiments using the standard simulation package.