For the transistors in the circuit in Figure P11.93, the parameters are: \(K_{n}=0.2 \mathrm{~mA} / \mathrm{V}^{2}, V_{T N}=2 \mathrm{~V}\), and \(\lambda=0.02 \mathrm{~V}^{-1}\).

(a) Determine the differential-mode voltage gain \(A_{d}=v_{o 3} / v_{d}\) and the common-mode voltage gain \(A_{c m}=v_{o 3} / v_{c m}\).

(b) Determine the output voltage \(v_{o 3}\) if \(v_{1}=2.15 \mathrm{sin}\) \(\omega t \mathrm{~V}\) and \(v_{2}=1.85 \sin \omega t \mathrm{~V}\). Compare this output to the ideal output that would be obtained if \(A_{c m}=0\).

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www V+= 12 V RD= 40 ww = R = 155 102 T 1 Rp2 = 4 ks RD = 40 k2 V03 M3 M M R = 6 k TH M5 V-12 V Figure P11.93