Design of a Low-Voltage Op Amp Using the Topology of Figure

Use the parameters of below Table to design the op amp of providing figure to meet the specifications given below.



$$

\begin{array}{lll}

V_{D D}=2 \mathrm{~V} & V_{i c m}(\max )=2.5 \mathrm{~V} & V_{i c m}(\min )=1 \mathrm{~V} \\

V_{\text {out }}(\max )=1.75 \mathrm{~V} & V_{\text {out }}(\min )=0.5 \mathrm{~V} & G B=10 \mathrm{MHz} \\

\text { Slew rate }= \pm 10 \mathrm{~V} / \mu \mathrm{s} & \text { Phase margin }=60^{\circ} \text { for } C_L=10 \mathrm{pF}

\end{array}

$$

\begin{tabular}{|l|l|l|l|l|}

\hline \multirow[b]{2}{*}{Parameter Symbol} & \multirow[b]{2}{*}{Parameter Description} & \multicolumn{2}{|c|}{Typical Parameter Value} & \multirow[b]{2}{*}{Units} \\

\hline & & n-Channel & p-Channel & \\

\hline $V_{T 0}$ & Threshold voltage ( $V_{B S}=0$ ) & $0.7 \pm 0.15$ & $-0.7 \pm 0.15$ & V \\

\hline $K^{\prime}$ & Transconductance parameter (in saturation) & $110.0 \pm 10 \%$ & $50.0 \pm 10 \%$ & $\mu \mathrm{A} / \mathrm{V}^2$ \\

\hline $\gamma$ & Bulk threshold parameter & 0.4 & 0.57 & $\mathrm{V}^{1 / 2}$ \\

\hline $\lambda$ & Channel length modulation parameter & $0.04(L=1 \mu \mathrm{~m}) 0.01(L=2 \mu \mathrm{~m})$ & $0.05(L=1 \mu \mathrm{~m}) 0.01(L=2 \mu \mathrm{~m})$ & $\mathrm{V}^{-1}$ \\

\hline & & & & \\

\hline $2\left|\phi_F\right|$ & Surface potential at strong inversion & 0.7 & 0.8 & V \\

\hline

\end{tabular}