Question: Repeat Problem 8.8 using the formulas from return-ratio analysis. Repeat Problem 8.8 (a) Repeat Problem 8.7(a) with all NMOS transistors in Fig. 8.48 replaced by
Repeat Problem 8.8
(a) Repeat Problem 8.7(a) with all NMOS transistors in Fig. 8.48 replaced by bipolar npn transistors. All collector currents are 1 mA and β = 200,VA = 50 V, and rb =0.

(b) If the circuit is fed from a source resistance of1k in parallel with ii, what is the new output resistance of the circuit?
M1 5 k2 5 k2 5 k2 M2 10 k2 -
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g m I C V T IMA26mV 385 10 2 AV r 01 V A I C 5010 3 50k r 1 g m1 100 385 10 2 52k a r 01 R ... View full answer
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