1.) $I_5=C_L \cdot S R=250 \mu \mathrm{~A}$
2.) $g_{m 1}=G B \cdot C_L \cdot=20 \pi \mathrm{x} 106 \cdot 25 \mathrm{pF}=1,570.8 \mu \mathrm{~S} \quad \Rightarrow \frac{W_1}{L_1}=\frac{\left(1.570 \times 10^{-3}\right)^2}{2 \cdot 110 \cdot 125 \times 10^{-6}}=90$
3.) $W 3=W 4=W 6=W 7=W 8=\frac{2 I_D}{K^{\prime}\left(V_{D S}(\text { sat })\right)^2}=\frac{2 \cdot 250}{50 \cdot 0.25}=40 \quad\left(\right.$ assumed $I_D$ of $250 \mu \mathrm{~A}$ worst case)
4.) $W 9=W 10=W 11=\frac{2 I_D}{K^{\prime}\left(V_{D S}(\text { sat })\right)^2}=\frac{2 \cdot 250}{110 \cdot 0.25}=18\left(\right.$ assumed $I_D$ of $250 \mu \mathrm{~A}$ worst case $)$