a$)$ Draw the low$-$frequency small$-$signal model of the amplifier

b$)$ Find the midband gain and the lower cut$-$off frequency

c$)$ Draw the low$-$frequency asymptotic gain response

d$)$ Write down the complex gain expression

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A differential amplifier is given

Each transistor has $=100$

Find:

The quiescent values lca and Voa

The differential gain $(A_d=\frac{V_d}{V}H)$

The Common Mode Rejection Ratiof $($CMRR $1$