Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter 3, Problem 3.2QAP
Interpretation Introduction

Interpretation:

CMRR of amplifier is to be calculated.

Concept introduction:

CMRR stands for Common Mode Rejection Ratio. It represents how effectively the common mode signal (for example -noise) is rejected by a difference amplifier.

The formula to calculate CMRR is

CMRR=AdAc

where Ad and Ac represents difference mode and common mode gains of the difference amplifier respectively.

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Principles of Instrumental Analysis
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ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning