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Given in Figure la is an operational amplifier used as a summing amplifier that accepts three inputs: v1, v2, and V3. The op amp has a gain of av, input resistance of rin, and output resistance of rout. The equivalent circuit of the op amp is shown in Figure 1b. R1 RF R2 Tout Vout v2 R3 oVout Vdiff I)avvdiff T'in v3 V-o Input Network Feedback Amplifier (a) Summing Amplifier (b) Equivalent Circuit of the Op Amp Figure 1: Summing Amplifier and Equivalent Op Amp Circuit

Given in Figure la is an operational amplifier used as a summing amplifier that accepts three inputs: v1, v2, and V3. The op amp has a gain of av, input resistance of rin, and output resistance of rout. The equivalent circuit of the op amp is shown in Figure 1b. R1 RF R2 Tout Vout v2 R3 oVout Vdiff I)avvdiff T'in v3 V-o Input Network Feedback Amplifier (a) Summing Amplifier (b) Equivalent Circuit of the Op Amp Figure 1: Summing Amplifier and Equivalent Op Amp Circuit

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Find the expression for the open loop gain Rm (=Output voltage/Input current). Get the expression for Ro,cl (closed loop output resistance).

Given in Figure la is an operational amplifier used as a summing amplifier that accepts three inputs: v1, v2, and V3. The op amp has a gain of av, input resistance of rin, and output resistance of rout. The equivalent circuit of the op amp is shown in Figure 1b. R1 RF Tout R2 V+ o o Vout V2 -o Vout R3 Vdiff | AyVdiff rin V3 V-o Input Network Feedback Amplifier (a) Summing Amplifier (b) Equivalent Circuit of the Op Amp Figure 1: Summing Amplifier and Equivalent Op Amp Circuit
Transcribed Image Text:Given in Figure la is an operational amplifier used as a summing amplifier that accepts three inputs: v1, v2, and V3. The op amp has a gain of av, input resistance of rin, and output resistance of rout. The equivalent circuit of the op amp is shown in Figure 1b. R1 RF Tout R2 V+ o o Vout V2 -o Vout R3 Vdiff | AyVdiff rin V3 V-o Input Network Feedback Amplifier (a) Summing Amplifier (b) Equivalent Circuit of the Op Amp Figure 1: Summing Amplifier and Equivalent Op Amp Circuit
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