Consider the circuit below where the drain current through M1, M2, and

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Consider the circuit below where the drain current through M1, M2, and M3 is designed to be 1 mA. Assume VT = 1 V and Kn′ = 2 mA/V2. a) Find the W/L ratio for M2 and the DC voltages at all nodes. b) Draw the small-signal model for the circuit at the operating point you found in part a. Derive an expression for the small-signal gain (A = vo/vi) and evaluate it numerically.

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Consider the circuit below where the drain current through M1, M2, and M3 is designed to be

1 m A

. Assume

V_{T} = 1 V

and

K_{n}^{'} = 2 m A / V^{2}

. a) Find the

W / L

ratio for M2 and the DC voltages at all nodes. b) Draw the small-signal model for the circuit at the operating point you found in part a. Derive an expression for the small-signal gain