Design of the Two-Stage, Open-Loop Comparator for a Linear Response



Assume the specifications of provided figure are given below:



$$

\begin{array}{lll}

t_p=50 \mathrm{~ns} & V_{O H}=2 \mathrm{~V} & V_{O L}=-2 \mathrm{~V} \\

\mathrm{~V}_{D D}=2.5 \mathrm{~V} & V_{S S}=-2.5 \mathrm{~V} & C_{I I}=5 \mathrm{pF} \\

V_{\text {in }}(\min )=1 \mathrm{mV} & V_{\text {icm }}^{+}=2 \mathrm{~V} & V_{\text {icm }}^{-}=-1.25 \mathrm{~V}

\end{array}

$$





Also assume that the overdrive will be a factor of 10 . Design a two-stage, open-loop comparator using Fig. 8.2-3 to achieve the above specifications and assume that all channel lengths are to be $1 \mu \mathrm{~m}$.