The circuit shown uses active loads, and the gate voltage on the upper transistors is adjusted to get the desired DC current.$$Please use the information on the upper transistors just to obtain an equivalent small signal resistance.

Find the overvoltage Vov at which the circuit is operating.

Find the equivalent output resistance of the upper transistor load in KOhms.

Assuming the voltage at the drain of the upper PMOS transistor is $7$V when the circuit is operating as a differential amplifier, find the highest common mode gate voltage for which it will continue to operate as a differential amplifier.

In the circuit shown,$$find the lowest common mode gate voltage for which the circuit will continue to act as a differential$$amplifier at its correct overvoltage$)$amplifier$,$ find the highest common mode gate voltage for which it will continue to operate as a differential amplifier.

Find the amplitude of differential input voltage$($not peak to peak$).$over which this circuit will operate as a differential ampilfier

If Vg$1$ is $3$ V$,$ Vg$2$ is $3\mathrm{.}2$V$,$ what is the output voltage $($V$+-$V$-)?$