When the output of a BJT differential amplifier is taken differentially, its CMRR is found to be
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Question:
When the output of a BJT differential amplifier is taken differentially, its CMRR is found to be 34 dB higher than when the output is taken single-endedly. If the only source of common-mode gain when the output is taken differentially is the mismatch in collector resistances, what must this mismatch be (in percent)?
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