Current-mirror-loaded mos differential amplifier

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Reference no: EM131037304

9.104 Consider the current-mirror-loaded MOS differential amplifier of Fig. 9.32(a) in two cases: (a) Current source I is mplemented with a simple current mirror. (b) Current source I is implemented with the modified Wilson current mirror shown in Fig. P9.104. Recalling that for the simple mirror RSS = ro/ QS and for the Wilson mirror RSS ?gm7ro7ro5, and assuming that all transistors have the same /VA / and k1W/L, show that for case (a)

where VOV is the overdrive voltage that corresponds to a drain current of I/2. For k_W/L =4 mA/V2, I =160 μA, and /VA /= 5 V, find CMRR for both cases.

Reference no: EM131037304

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