QUESTION $7$

For a prototype OpAmp below $($differential amplifier cascaded with Common$-$emmiter and Common$-$Drain$),$ given VDD$=5$V$,-$VSS$=-5$V$,$ IREF$=0\mathrm{.}5$mA$,($W$/$L$)1=(\frac{W}{L})5=5.$ design requires $IO2=0\mathrm{.}6mA,I_O=2mA,IO=10mA,$ assume all MOSFET transistors have $=\frac{0\mathrm{.}04}{V},$ and given $gm2=gm6=gm7=gm{8}^{}=5ms,gm9=3\mathrm{.}0mS.$ For MOSFET DSS $|||$

At quiesent condition