Kurukshetra University 2009 B.Tech Electronics and Communications Engineering 09 ece engglinear ic applidations - Question Paper

 

 

 

Roll NO. .............. Total Pages: 2

8522

BT-5/D09

LINEAR IC APPLICATIONS

Paper: ECE-307(E)

Time: Three Hours] [Maximum Marks: 100

 

NOTE: Attempt five questions in all, selecting at least one question from each unit.

 

UNIT-I

1. (a) What is the meaning of CASCADE ? Explain cascade

amplifier with suitable diagram. What is level translator

circuit? 7

 

(b) Explain:

(i) Balanced output differential amplifier.

(ii) Unbalanced output differential amplifier.

(iii) FET differential amplifier. 13

 

2. Explain ideal Op-amp with suitable diagram. What are its

Characteristics parameters ? Draw equivalent circuits of

Op-amp and explain its circuit configuration. 20

UNIT-II

 

3. (a) Show block diagram representation of feedback

amplifier and discuss. 10

 

(b) Discuss why Open loop Op-amp is unsuitable for

linear IC applications. 10

 

 

 

 

 

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4. (a) What is Slew rate ? List its causes. 5

 

(b) Explain Circuit stability. 5

(c) Draw closed loop frequency response and discuss. 5

 

(d) What is Non- compensating Op-amp? 5

 

UNIT-III

 

5.                        Explain the following:

(a)          Scaling amplifier

 

(b)          Peaking amplifier

 

(c)          Differential amplifier

 

(d)         Wave shaping amplifier 20

 

6.                        Describe voltage to current converter and current to voltage

Converter with suitable diagram. 20

 

UNIT-IV

 

7.                        What is PLL ? Explain basic building blocks of PLL.

Discuss its applications. 20

 

8.                        Write short notes on the following :

 

(a)          Power amplifier.

 

(b)          Astable 555 timer.

 

(c)          Universal active filter.

 

(d)         8038 IC. 20

 

 

 

 

 

 

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