Draw the circuit diagram of a differential amplifier using one op amp and resistances as needed. Give the output voltage in terms of the input voltages and resistances.
Draw the circuit diagram of a differential amplifier using one op amp and resistances as needed. Give the output voltage in terms of the input voltages and resistances.
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter18: Resistive-inductive Parallel Circuits
Section: Chapter Questions
Problem 13PP: In an R-L parallel circuit, IT=1.25 amps, R=1.2k, and XL=1k. Find IR
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Question
Draw the circuit diagram of a differential amplifier using one op amp and resistances as needed. Give the output voltage in terms of the input voltages and resistances.
Expert Solution
Step 1
The differential amplifier has two inputs attached to two different terminals of Op-amp. The equivalent circuit of differential amplifier with Op-amp, two inputs, feedback resistance and input resistances, is shown below:
Where,
The input at non-inverting terminal is “V2”,
The input at inverting terminal is “V1”,
The feedback resistance is “Rf”,
The input resistances are “R1”, “R2” and “R3”.
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