Design a MOS differential amplifier to operate from +/- 1V power supplies and dissipate no more than 2 mW in the equilibrium state. The differential voltage gain Ad is to be 5 V/V and the output common-mode dc voltage is to be 0.5 V. (Note: This is the dc voltage at the drain). Assume µnCox = 400 µA/V2 and neglect the Early Effect. Specify I, RD, and W/L.