Consider the differential amplifier in Figure P11.17 with parameters V+ = 5 V, V− = −5V, a...

Consider the differential amplifier in Figure P11.17 with parameters V+ = 5 V, V− = −5V, and IO = 0.8 mA. Neglect base currents and assume VA = ∞ for all transistors. The emitter currents can be written as IE1 = IS1eVBE1/VT and IE2 = IS2eVBE2/VT. (a) If v1 = v2 = 0 and IS1 = IS2 = 3×10−15 A, determine (vO1 −vO2) for (i) RC1 = RC2 = 7.5 kΩ and (ii) RC1 = 7.4 kΩ, RC2 = 7.6kΩ. (b) Repeat part (a) for IS1 = 2.9 ×10−15 A and IS2 = 3.1 × 10−15 A.