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Electronic Circuit Design Assignment: Inverting Amplifier Analysis, Assignments of Electronic Circuits Design

COMSATS Institute of Information Technology (CIIT)Electronic Circuits Design

Questions of Assignment The solution is uploaded as well (Name as Graded Assignment #4 )

Typology: Assignments

2019/2020

Uploaded on 05/17/2020

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Army Public College of Management & Sciences, Rawalpindi
(Affiliated with UET Taxila)
Department of Engineering Sciences
Class/Semester: EE-Fall 18A Assignment: 04
Course/Subject: Electronic Circuit design
Course Instructor: Engr. Ayyaz Ali Max Marks: 30
Q1. Analyze the inverting configuration with R1 = 3kΩ and R2 = 200kΩ.Ω and R2 = 200kΩ and R2 = 200kΩ.Ω.
(a). Find the closed loop gain for the case A=106 & 107. In each case determine the percentage error in
the magnitude of G relative to the ideal value of R2/R1 (obtained with A=infinity). Also determine
the voltage v1 that appears at the inverting input terminal when v1=0.1V.
(b). If the open loop gain A changes from 100,000 to 50,000 (i.e drops by 50%) what is the
corresponding percentage change in the magnitude of the closed loop gain G?
CLO-3 PLO-1 C4 (15)
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Army Public College of Management & Sciences, Rawalpindi

(Affiliated with UET Taxila)

Department of Engineering Sciences

Class/Semester: EE-Fall 18A Assignment: 04

Course/Subject: Electronic Circuit design

Course Instructor: Engr. Ayyaz Ali Max Marks: 30

Q1. Analyze the inverting configuration with R1 = 3kΩ and R2 = 200kΩ.Ω and R2 = 200kΩ and R2 = 200kΩ.Ω. (a). Find the closed loop gain for the case A=10^6 & 10^7. In each case determine the percentage error in the magnitude of G relative to the ideal value of R2/R1 (obtained with A=infinity). Also determine the voltage v1 that appears at the inverting input terminal when v1=0.1V. (b). If the open loop gain A changes from 100,000 to 50,000 (i.e drops by 50%) what is the corresponding percentage change in the magnitude of the closed loop gain G? CLO-3 PLO-1 C4 (15)

Q2. Assuming the op amp to be ideal, develop an expression for the closed loop gain vo/vi of the circuit shown. Use this circuit to design an inverting amplifier with a gain of 200 and an input resistance of 2MΩ. Assume that for practical reasons it is required not to use resistors greater thanΩ. Assume that for practical reasons it is required not to use resistors greater than 2MΩ. Assume that for practical reasons it is required not to use resistors greater thanΩ. Compare your design with that based on the inverting configuration we studied previously (op- amp only 2 resistors). CLO-3 PLO-1 C4 (15)