Question
Download Solution PDFA change in the value of the emitter resistance RE in a differential amplifier
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFDifferential amplifier is shown below:
Differential voltage Gain (Ad) is given by:
Ad = -gmRc
And the Common-mode gain (Acm) is given by:
We can observe that with an increase in RE, Acm decreases.
Note:
We can observe that with an increase in RE, Acm decreases, and CMRR increases.
Last updated on Jul 2, 2025
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