An op-amp differential amplifier is built using four identical resistors, each having a tolerance of ±5%. Calculate the worst possible CMRR. (Gd=-1)
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It uses four resistors: \( R_1, R_2, R_3, \) and \( R_4 \). The gain \( G_d \) is given as -1, which implies \( R_2/R_1 = R_4/R_3 \). Show more…
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