The differential gain circuit in Fig. P3.32 is perfectly symmetric. Assume all transistors are kept in the active region. a. Draw the equivalent half-circuit. b. Derive an expression for the circuit’s...

The differential gain circuit in Fig. P3.32 is perfectly symmetric. Assume all transistors are kept in the active region.

a. Draw the equivalent half-circuit.

b. Derive an expression for the circuit’s small-signal differential gain in terms of the transistor small-signal parameters: , , etc.

c. Derive an expression for the circuit’s small-signal output resistance in terms of the transistor small-signal parameters.