V1 R2 R3 ww R1 +V Rg Vo R1 -V R2 R3 V2 -V ne first two amplifiers are unity-gain amplifiers while the third amplifier is a difference mplifier. The differential mode gain of the circuit is given by the expression as shown below: = (1 + #) 2R1 R2 R3 ne common-mode gain of the above circuit is zero. n = 0 %3D

" This is a good question based on simple analog circuit.And the chapter is opamp circuit of…

Answered: V1 R2 R3 ww R1 +V Rg Vo R1 -V R2 R3 V2 -V ne first two amplifiers are unity-gain amplifiers while the third amplifier is a difference mplifier. The differential…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN: 9780133923605

Author: Robert L. Boylestad

Publisher: PEARSON

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Current Division Method

The generalized current divider formula is given by the following relation below,

Question

Why is the difference mode gain of circuit given by below?

V1
R2
R3
R1
+V
Rg
Vo
R1
-V
R2
R3
V2
-V
The first two amplifiers are unity-gain amplifiers while the third amplifier is a difference
amplifier. The differential mode gain of the circuit is given by the expression as shown below:
2R1
1 +
RE
R3
Ay =
R2
The common-mode gain of the above circuit is zero.
Acm
%3D

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