Question

An op amp with an open loop gain, $A_v$, of 10,000 also has a common mode gain, $A_c$, of 0.1 . What is the common mode rejection ratio, CMRR, expressed in decibels?

   An op amp with an open loop gain, $A_v$, of 10,000 also has a common mode gain, $A_c$, of 0.1 . What is the common mode rejection ratio, CMRR, expressed in decibels?

Essentials of Electrical and Computer Engineering

Essentials of Electrical and Computer Engineering

David V. Kerns, Jr.,… 1st Edition

Chapter 9, Problem 52

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The CMRR is defined as the ratio of the differential gain (open loop gain, \(A_v\)) to the common mode gain (\(A_c\)). The formula is given by: \[ \text{CMRR} = \frac{A_v}{A_c} \] Show more…

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An op amp with an open loop gain, $A_v$, of 10,000 also has a common mode gain, $A_c$, of 0.1 . What is the common mode rejection ratio, CMRR, expressed in decibels?

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