Figure 551
the MOSFETs in the Circuits of Fig $k=1 \mathrm{~mA} / \mathrm{V}^{2},\left|V_{t}\right|=1 \mathrm{~V}$

Essay

Figure 5.5.1
The MOSFETs in the circuits of Fig. 5.5.1 have $k=1 \mathrm{~mA} / \mathrm{V}^{2},\left|V_{t}\right|=1 \mathrm{~V}$ , and $\lambda=0$ .
(a) For the circuit in Fig. 5.5.1(a), find the values of $R_{D}$ and $R_{S}$ that result in the MOSFET operating at the edge of the saturation region with $I_{D}=0.1 \mathrm{~mA}$ .
(b) For the circuit in Fig. 5.5.1(b), find $I_{D}$ and $R_{D}$ .
(c) For the circuit in Fig. 5.5.1(c), find $I_{D N}, I_{D P}$ , and $V_{O}$ . Also, find the drain-to-source incremental resistance of each of $Q_{N}$ and $Q_{P}$ .