The MOSFET current-source circuit in Figure P10.44 is biased at \(V^{+}=\) \(2.0 \mathrm{~V}\). The transistor parameters are \(V_{T N}=0.5 \mathrm{~V}, k_{n}^{\prime}=80 \mu \mathrm{A} / \mathrm{V}^{2}\), and \(\lambda=0.015 \mathrm{~V}^{-1}\).

(a) Design the circuit such that \(I_{\mathrm{REF}}=50 \mu \mathrm{A}\) and the nominal bias current is \(I_{O}=100 \mu \mathrm{A}\).

(b) Find the output resistance \(R_{o}\).

(c) Determine the percentage change in \(I_{O}\) for a change in drain-to-source voltage of \(\Delta V_{D S 2}=1 \mathrm{~V}\).

Transcribed Image Text:

REF V+ R M M2 Figure P10.44