Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
PDDC SEMESTER-IV EXAMINATION WINTER 2018
Subject Code:X41103 Date: 28/11/2018
Subject Name: Integrated Circuits and Applications
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
q.1
Draw and explain basic block diagram of op-amp and list out ideal characteristics of op-amp.


Explain Integrator circuit using Op-amp in detail.

q.2
Determine the order of a low pass Butterworth filter that is to provide 40dB attenuation at a frequency which is twice the cut-off frequency.


Explain triangle wave generator using Op-amp in detail.

OR

Explain peaking amplifier in detail.

q.3
Design a practical integrator circuit with a d.c. gain of 10 to integrate a square wave of 10KHz.


Draw and Explain Working Op-amp based log amplifier.

OR
q.3
Explain non-inverting comparator using op-amp in detail.


Explain summing, scaling, and averaging amplifier using inverting configuration.

q.4
Explain positive and negative clipper circuit in detail.


Explain peak detector in detail.

OR
q.4
Analyze second order Butterworth High Pass filter. Draw its frequency response and state design procedure.


Explain sample and hold circuit with necessary diagrams.

q.5
Explain 555 timer as astable multivibrator in detail.


List the applications of Operational tranconductance amplifier. Explain its application as a current controlled Integrator.

OR
q.5
Explain 555 timer as a monostable multivibrator in detail.


Explain RC-CR transformation for filter designing in detail.