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The parameters of the BiCMOS circuit in given Figure are V + = 5 V, VGG = 2.5 V, RD1 = 5 k Ω, RE2 = 1.6 k Ω, and RL = 1.2 k Ω.

The transistor parameters are Kn = 1.5 mA/V2, VTN = 0.5 V, λ = 0 for M1 and hF E = 120, VE B(on) = 0.7 V, VA = ∞ for Q2.

(a) Determine the quiescent values IDQ1 and IC Q2.

(b) Find the small-signal voltage gain Av = vo/vi .

(c) Determine the small-signal output resistance Rof .

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