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

 

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3.32 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. Q4 b. Derive an expression for the circuit's small-signal differential gain in terms of the transistor small-signal parameters: gm, rde etc. c. Derive an expression for the circuit's small-signal output resistance in Vaz Q, Var terms of the transistor small-signal parameters. Q2 VB1 Q, (1) Ibias Fig. P3.32 3.32 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. Q4 b. Derive an expression for the circuit's small-signal differential gain in terms of the transistor small-signal parameters: gm, rde etc. c. Derive an expression for the circuit's small-signal output resistance in Vaz Q, Var terms of the transistor small-signal parameters. Q2 VB1 Q, (1) Ibias Fig. P3.32