1Input resistanceOutput resistanceOpen-loop gainRin=1MQRo=2000Ao=100,000190KO10kOFigure. 1(c) Explain what is the Virtual Short-Circuit (Virtual Ground) of an Op-Amp.

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Input resistance Output resistance Open-loop gain Rin=1MQ Ro=2000 Ao=100,000 190KO 10kn Figure. 1 (c) Explain what is the Virtual Short-Circuit (Virtual Ground) of an Op- Amp.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Operational Amplifier

An operational amplifier also called op amp is an integrated circuit or analog circuit that takes input as a differential voltage and produces output as a single-ended voltage. It is an IC that can amplify weak electric signals.An op amp has one output pin and two input pins. The basic role of an opamp is to amplify the voltage difference between the two input voltages. It is also used in filtering or to perform mathematical operations or in signal conditioning.

Question

1
Input resistance
Output resistance
Open-loop gain
Rin=1MQ
Ro=2000
Ao=100,000
190KO
10kO
Figure. 1
(c) Explain what is the Virtual Short-Circuit (Virtual Ground) of an Op-
Amp.

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