The differential amplifier of Fig. 5 is biased with I = 100 μA. All transistors have L = 2 μm, and Q1 and Q2 have W/L = 50. All transistors are operated in saturation region. The circuit is fabricated in a process for which μnCox = 200 μA/V2 and |VA′| = 5 V/μm. Find gm1, 2, ro2, ro4, and Ad = vo/vid. Fig. 5