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A student who has a single-ended voltage source constructs the circuit shown in Fig 10 75 hoping to obtain differential outputs Assume perfect symmetry but

A student who has a single-ended voltage source constructs the circuit shown in Fig. 10.75, hoping to obtain differential outputs. Assume perfect symmetry but λ = 0 for simplicity.

(a) Viewing Mas a common-source stage degenerated by the impedance seen at the source of M2, calculate vX in terms of vin.

(b) Viewing M1 as a source follower and M2 as a common-gate stage, calculate vY in terms of vin.

(c) Add the results obtained in (a) and (b) with proper polarities. If the voltage gain is defined as (v- vY )/vin, how does it compare with the gain of differentially-driven pairs?

Apr 24 2020 View more View Less

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