In the circuit below, the small-signal source vs(t) = 10 cos(100t) mV is applied to the input of the amplifier circuit consisting of MOSFETs Q1 and Q2 that have been biased to operate in saturation. Assume the transistors have Vt = 2 V and kn = 2 mA/V2. 5) Determine the amplifier configurations of Q1 and Q2 and theirtransconductances gm1 and gm2. 6) Sketch the small-signal circuit using the pi model for Q1 and T model for Q2.7) Estimate the small-signal current i(t) and voltage v(t) at the drain of Q1.8) Estimate the voltage vO(t) at the drain of Q2.5kΩ1mA