Determine the loop gain and prove that the feedback is posit

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Reference no: EM131279006

An adventurous student replaces the NMOS source follower in Fig. 12.90 with a PMOS common-source stage (Fig. 12.91). Unfortunately, the amplifier does not operate well.

(a) Prove by inspection that the feedback is positive.

(b) Breaking the loop at the gate of M₂, determine the loop gain and prove that the feedback is positive.

Reference no: EM131279006

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