9.56 For the differential amplifier shown in Fig. P9.2, let Q1 and Q2 have kp(W/L) = 4 mA/V2, and assume that the bias current source has an output resistance of 30 k. Find VOV , gm, A d , A cm , and the CMRR(in dB) obtainedwith the output taken differentially. The drain resistances are known to have a mismatch of 2%.

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