The diff-amp in Figure P11.34 has parameters V+ = 3 V, V− = −3 V, and IQ = 0.18 mA. The tr...

The diff-amp in Figure P11.34 has parameters V+ = 3 V, V− = −3 V, and IQ = 0.18 mA. The transistor parameters are VTN = 0.35 V,  = 100μA/V2, W/L = 4, and λ = 0. (a) Using Figure P11.34(a), determine RD such that the maximum value of the common-mode input voltage is vcm (max) = 2.25 V. The input transistors M1 and M2 must remain biased in the saturation region, (b) Using Figure P11.34(b), determine the value of vD2 for (i) vd = 0, (ii) vd = +120 mV, and (iii) vd = −50 mV.