Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) (ECE)-Electronics And Communications Engineering 2020 December 5th Sem 70547 Linear Integrated Circuits Previous Question Paper
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (ECE) / B.Tech. (Electronics & Computer Engg.) (2012 to 2017)
(Sem.?5)
LINEAR INTEGRATED CIRCUITS
Subject Code : BTEC-503
M.Code : 70547
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Answer briefly :
1.
Differentiate between cascade and cascode amplifiers.
2.
What is thermal drift? How does it affect the performance of op-amp circuit?
3.
What is voltage limiting and why is it needed?
4.
What are the characteristics of an ideal op-amp?
5.
Define Input Bias Current and SVRR.
6.
List the advantages of active filters over passive ones.
7.
Explain the concept of virtual ground.
8.
Explain the working principle of PLL.
9.
Write the applications of monostable multivibrator.
10. In an astable multivibrator RA = 10 k, RB = 100 k and C = 0.1 F. Calculate
frequency of oscillation.
1 | M-70547
(S2)-1020
SECTION-B
11. What is level translator circuit? Why is it used with cascaded differential amplifier?
12. Compare inverting and non-inverting amplifiers.
13. a) Design a differentiator to differentiate an input signal that varies in frequency from
10 Hz to about 1 kHz.
b) Determine the output of above differentiator if a sine wave of 1V peak at 1kHz is
applied to its input.
14. What is the name of the circuit that is used to detect the peak value of the nonsinusoidal
input waveform? Explain its operation.
15. Explain with the help of circuit diagram operation of instrumentation amplifier using
three op-amps.
SECTION-C
16. Write a note on :
a) Sample and hold circuit
b) V to F converter
17. Explain in detail about voltage regulator and its types.
18. a) Explain the operation of 555 timer as monostable multivibrator.
b) What are the different types of linear IC packages and what are the criteria of
selecting an IC package?
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
2 | M-70547
(S2)-1020
This post was last modified on 13 February 2021