*9.80 A differential amplifier is fed in a balanced or push–pull manner, and the source resistance in series with each base is R s. Show that a mismatch Rs between the values of the two source resistances gives rise to an input offset voltage of approximately (I/2β)Rs / [1+(gmRs)/β].

9.80 - *9.80 A differential amplifier is fed in a balanced or push–pull manner, and the source resistance in series with each base is R s. Show that a mismatch Rs between the values of the two source resistances gives rise to an input offset voltage of approximately (I/2β)Rs / [1+(gmRs)/β].

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images - *9.80 A differential amplifier is fed in a balanced or push–pull manner, and the source resistance in series with each base is R s. Show that a mismatch Rs between the values of the two source resistances gives rise to an input offset voltage of approximately (I/2β)Rs / [1+(gmRs)/β].

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