1. (20 points) For the BJT differential amplifier shown in the following figure,

Vcc = 12V, -V=-12V, R = 270k2, R = 330k, Von = 0.7V, B = 100,

and V₁ = 75V.

V1

Rc

ā

+Vcc

-OVC1 Vezo

Voo Q₂

REE

Rc

-VEE

V₂

a) What are the Q-points?

b) What are the differential-mode gain for differential (or balanced) output,

the differential-mode gain for single-ended output, and the differential-

mode input resistance?

c) What are the common-mode gain for differential output, the common-

mode gain for single-ended output, and the common-mode input

resistance?

d) What are the output resistance for differential output and single-ended

output, respectively?

e) What are the CMRR for differential output and single-ended output,

respectively?