The circuit and transistor parameters of the bipolar diff-amp shown in Figure P11.78 are I...

The circuit and transistor parameters of the bipolar diff-amp shown in Figure P11.78 are IQ = 200 µA, βnpn = 125, βpnp = 80, VBE(on) = VEB (on) = 0.7 V, VAN = 100 V, and VAP = 60 V. (a) What are the minimum power supply voltages (assume symmetrical supply voltages) if the common-mode input voltage is to be in the range of ±2 V. (b) What is the differential-mode voltage gain?