Download PTU B.Tech 2020 March ECE 5th Sem BTEC 503 Linear Integrated Circuits Question Paper

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Roll No. [T | Total No. of Pages : 02

Total No. of Questions : 09

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B.Tech.(ECE/ (2012 to 2017)/B.Tech.(Electronics & Telecom Engg.)

(Sem.=-5)

LINEAR INTEGRATED CIRCUITS

Subject Code : BTEC-503

M.Code : 70547

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Time : 3 Hrs. Max. Marks : 60

INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

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SECTION-A

1. Answer briefly :
   1. Draw sample and hold circuit.
   2. What is a Voltage follower?
   3. Draw the circuit of peak detector.
   4. Define CMMR.

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   5. Why switching regulators have better efficiency than series regulators?
   6. Draw the non inverting op-amp circuit diagram.
   7. What is the main advantage of constant current bias over emitter bias in differential amplifiers?
   8. What is the purpose of low pass filter in a phase locked loop?
   9. What are the effects of voltage series feedback in Op-amp?

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   10. What is the use of all pass filter?

SECTION-B

1. Draw the op-amp block diagram and explain the functions of each block.
2. Explain the concept of level translator.

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3. Draw the functional block diagram of IC 555 in detail.
4. Explain the operation of Narrow band pass filter with a neat diagram.
5. Explain how the average circuit can be derived from the summer.

SECTION-C

1. Derive the Differential Amplifier- AC analysis of single input dual output Configuration in detail.

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2. Draw the block diagram of Astable operations using IC 555 and derive its time constant.
3. Design and draw the circuit diagram of a second order low pass Butterworth filter having a high cut-off frequency of 1kHz. Use capacitor value <1pF.

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.