Question

Obtain voltage gain, input resistance and output resistance from the following circuits. (However,VA = ∞ and the internal parameters of ON can be displayed in A, 8m, B , and all transistors operate in the Active area (or at least Soft saturation)

VCC Q4 Vout V in Q w R1 Q2

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AC Equivalent uud VoV Qy Tin TOTT iRy vina Vir 01 Binn, VITI R3 yabi Rin {6,=Iin FRI 3R2 R1 vin Кы Vin = Som +(Br+1)(Rillez)jVO Vin - Bi ( R ||4) 9115, + (Rill R2) 1 vo 70 9m3 Butt rit + Ri 2112 Bzth Rin anni + (Rill riz Bati 2)(8+) Rout I fest I Ve

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