An nmos amplifier is to be designed to provide a 0.20-v peak output signal across a 20-k ohm load that can be used as a drain resistor. if a gain of at least 10 v/v is needed, what g_m is required? using a dc supply of 1.8 v, what values of i_d and v_ov would you choose? what w/l ratio is required if mu_nc_ox = 200 mua/v^2? if v_t = 0.4 v, find v_gs.