Assignment:
The BiCMOS circuit in Figure is equivalent to a pnp bipolar transistor with an infinite input impedance. The bias current is Iq=900uA. The transistor parameters are :Kp=1ma/V^2, Vtp=-1V, and lambda=0 for M1; and Beta=100, Vbe(on)=.7, and Va=infinity for Q2. [a] Sketch the small-signal equivalent circuit (mine didn't work out, two dependant currents pointed to each other..), [b] Determine the small-signal parameters for each transistor, and [c] Determine the small-signal voltage gain AV=Vo/Vi.
