The bias voltage of the MOSFET amplifier with active load in Figure \(\mathrm{P} 10.79\) is changed to \(V^{+}=3 \mathrm{~V}\). The transistor parameters are \(V_{T N}=\) \(0.5 \mathrm{~V}, V_{T P}=-0.5 \mathrm{~V}, k_{n}^{\prime}=100 \mu \mathrm{A} / \mathrm{V}^{2}, k_{p}^{\prime}=60 \mu \mathrm{A} / \mathrm{V}^{2}\), and \(\lambda_{n}=\lambda_{p}=\) \(0.02 \mathrm{~V}^{-1}\). The quiescent values are \(V_{O}=1.5 \mathrm{~V}\) and \(V_{I}=1.2 \mathrm{~V}\).

(a) Design the circuit \(W / L\) ratios, such that \(I_{\mathrm{REF}}=I_{O}=100 \mu \mathrm{A}\). Assume \(M_{1}\) and \(M_{2}\) are matched.

(b) Determine the small-signal voltage gain.

Transcribed Image Text:

10 V+=5V + M2 VSG Mo Figure P10.79 I M M3 IREF