(Solved): 4. Please consider the CMOS amplifier of Figure 2. Given that IREF=50A,VDD=VSS=10V and ...

4. Please consider the CMOS amplifier of Figure 2. Given that $I_{\mathrm{REF}}=50?\mathrm{A},{\mathrm{V}}_{\mathrm{DD}}={\mathrm{V}}_{\mathrm{SS}}=10\mathrm{V}$ and ${?}_{\mathrm{n}}={?}_{\mathrm{P}}=0.0125{\mathrm{V}}^{?1}$. Assume that all NMOS transistors have ${\mathrm{k}}_{\mathrm{n}}{}^{?}=25?\mathrm{A}/{\mathrm{V}}^2,{\mathrm{V}}_{\mathrm{TN}}=0.75\mathrm{V}$ and all PMOS transistors have ${\mathrm{k}}_{\mathrm{p}}{}^{?}=10?\mathrm{A}/{\mathrm{V}}^2,{\mathrm{V}}_{\mathrm{TP}}=?0.75\mathrm{V}$. Neglect $?$ for bias calculations Assume saturation region operation for all transistors. The transistor aspect ratio $\mathrm{W}/\mathrm{L}$ is given on the figure for each transistor. (Recall: ${\mathrm{k}}_{\mathrm{p}}{}^{?}={\mathrm{C}}_{\mathrm{ox}}.{?}_{\mathrm{n}}$ and ${\mathrm{k}}_{\mathrm{p}}{}^{?}={\mathrm{C}}_{\mathrm{ox}}.{?}_{\mathrm{p}}$ ) (25 points). Figure 2 a) Please, find IDQ for each transistor b) Please, find ${\mathrm{V}}_{\mathrm{GSQ}}$ for transistors ${\mathrm{M}}_9,{\mathrm{M}}_{10}$ and ${\mathrm{M}}_{11}$. c) Please, find the voltage gain, ${\mathrm{v}}_{03}/{\mathrm{v}}_{02}$.