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Download PTU B.Tech 2021 Jan ECE 5th Sem 78759 Linear Integrated Circuits Question Paper

Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January ECE 5th Sem 78759 Linear Integrated Circuits Previous Question Paper

This post was last modified on 26 June 2021

This download link is referred from the post: PTU B.Tech 5th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University


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Total No. of Pages : 03
Total No. of Questions : 18

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B.Tech. (ECE) (Sem.-5)

LINEAR INTEGRATED CIRCUITS

Subject Code : UC-BTEC-503-18
M.Code : 78759

Time : 3 Hrs. Max. Marks : 60

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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.

SECTION-A

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Write briefly :

  1. Define virtual ground in OpAmp circuits.
  2. List features of ideal OpAmp.
  3. Define CMRR for OpAmp. What is typical CMRR value?
  4. How does negative feedback effect input impedance in non-inverting amplifier?
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  6. What is the significance of slew rate in OpAmp circuits?
  7. How does zero-detector circuit work?
  8. What is PLL? Give an application.
  9. Differentiate monostable, bistable, and astable multivibrators.
  10. What are instrumentation amplifiers? List some important required features.
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  12. Where do we use positive feedback in OpAmp circuits? Give reasons.

SECTION-B

  1. Draw labelled internal circuit diagram of OpAmp IC741.
  2. Draw and explain working of OpAmp based square wave generator.
  3. Determine operating points current and voltage for the differential amplifier circuit shown in the figure. Given parameters are :

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    Rs1 = Ro = 40Ω
    Rg = 5kΩ
    Rec1 = R = 3kΩ
    β = 100
    Both BJTs are biased using + 10V voltage

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    This download link is referred from the post: PTU B.Tech 5th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University