QUESTION $10$

For a prototype OpAmp, given VDD$=8$V$,-VSS=-8V,$ and given $gm2=gm6=gm7=gm8=5mS,gm9=2\mathrm{.}1mS.$

$VTN=1\mathrm{.}3V,VTP=-1\mathrm{.}0V$

$V_{GS1}=V_{GS2}=V_{GS5}=V_{GS}=2\mathrm{.}2V,V_{GS}=V_{GS}=1\mathrm{.}8V,V_{SG10}=V_{SG11}=1\mathrm{.}8V$

Determine the maximum voltage for the common mode input