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21 of 24 articles

Differential Amplifier

Difference and common mode gain, CMRR, tail current source.

Darshan N
Updated: 27 March 2026
10 min read
#BJT

Differential Amplifier Theory

Calculate CMRR and differential gain concepts.

Question 1 of 3

Q1.What is the purpose of the tail current source in a differential amplifier?

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