For each transistor in the circuit in Figure P3.44, (k_{n}^{prime}=120 mu mathrm{A} / mathrm{V}^{2}). Also for (M_{1},

Question:

For each transistor in the circuit in Figure P3.44, $k_{n}^{\prime}=120 \mu \mathrm{A} / \mathrm{V}^{2}$. Also for $M_{1}, W / L=4$ and $V_{T N}=0.4 \mathrm{~V}$, and for $M_{2}, W / L=1$ and $V_{T N}=-0.6 \mathrm{~V}$.

(a) Determine the input voltage such that both $M_{1}$ and $M_{2}$ are biased in the saturation region.

(b) Determine the region of operation of each transistor and the output voltage $v_{O}$ for: (i) $v_{I}=0.6 \mathrm{~V}$ and (ii) $v_{I}=1.5 \mathrm{~V}$.

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