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WWW - Manaresults.Co - In: III B. Tech I Semester Supplementary Examinations, May-2017 Linear Ic Applications

This document is an examination paper for III B. Tech I Semester Supplementary Examinations in Linear IC Applications, covering topics relevant to Electronics and Communication, Instrumentation, and Computer Engineering. It consists of two parts, with Part-A being compulsory and Part-B requiring answers to three questions. The questions include circuit diagrams, operational amplifier characteristics, filter design, and applications of the 555 timer.

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26 views1 page

WWW - Manaresults.Co - In: III B. Tech I Semester Supplementary Examinations, May-2017 Linear Ic Applications

This document is an examination paper for III B. Tech I Semester Supplementary Examinations in Linear IC Applications, covering topics relevant to Electronics and Communication, Instrumentation, and Computer Engineering. It consists of two parts, with Part-A being compulsory and Part-B requiring answers to three questions. The questions include circuit diagrams, operational amplifier characteristics, filter design, and applications of the 555 timer.

Uploaded by

freward0001
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Code No: RT31042 R13 SET - 1

III B. Tech I Semester Supplementary Examinations, May-2017


LINEAR IC APPLICATIONS
(Common to Electronics and Communication Engineering, Electronics and Instrumentation
Engineering and Electronics and Computer Engineering)
Time: 3 hours Max. Marks: 70
Note: 1. Question Paper consists of two parts (Part-A and Part-B)
2. Answering the question in Part-A is compulsory
3. Answer any THREE Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A
1 a) Draw and explain the circuit diagram of basic current mirror. [4M]
b) The input signal to an op-amp is 0.03 sin (1.5x105t).What can be the maximum gain [4M]
of an op-amp with the slew rate of 0.4V/µs?
c) Explain how the average circuit can be derived from the summer. [3M]
d) What are the characteristics of all pass filters? [3M]
e) Describe the PPM using 555 timer mono stable multi vibrator. [4M]
f) The LSB of a 10=bit DAC is 20mv.calculate the output voltage for an input, [4M]
1011001101.
PART –B
2 For a Dual input balanced output differential amplifier RC=47kΩ, RS1=RS2=20kΩ, [16M]
R1=43kΩ,hfe=75,hie=20k,Vcc=9v,VEE=-9v and VBE=0.7v calculate i) operating point
values ii)Ad iii)Ac iv)CMRR in dB

3 a) Discuss briefly about stability of an op-amp. [8M]


b) Explain about the concept of frequency compensation. [8M]

4 a) Derive the frequency response of a practical integrator. [8M]


b) Design a practical integrator circuit with a D.C gain of 20, to integrate a square [8M]
wave of 25kHz.

5 a) Explain the operation of Narrow band pass filter with a neat diagram. [6M]
b) Design a multiple feedback Narrow band pass filter with fc=1kHz,Q=3 & Af=10. [10M]

6 Describe the 555 timer monostable multivibrator applications in i) Frequency [16M]


divider ii) Pulse width modulation.

7 a) With neat sketch explain the principle and operation of successive approximation [8M]
ADC.
b) With neat sketch explain the operation of Dual slope ADC. [8M]

*****

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