The current-mirror-loaded differential amplifier in Fig. 5 has a feedb

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The current-mirror-loaded differential amplifier in Fig. 5 has a feedback network consisting of the voltage divider with R1 = R2 = 25 kΩ. All the devices are sized to operate in saturation and |VOV| = 0.2 V (overdrive voltage). For all devices, Early voltage |VA| = 10 V. The input signal source has a zero dc component. Assume VDD = 5 V and VSS = −5 V. (a) (10 points) Find the gm and ro values for the transistors Q2 and Q4. (b) (10 points) Find the closed-loop voltage gain vo/vs.

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The current-mirror-loaded differential amplifier in Fig. 5 has a feedback network consisting of the voltage divider with $R_{1} = R_{2} = 25 k Ω$ . All the devices are sized to operate in saturation and $| V_{O V} | = 0.2 V$ (overdrive voltage). For all devices, Early voltage $| V_{A} | = 10 V$ . The input signal source has a zero dc component. Assume $V_{D D}$ $= 5 V$ and $V_{S S} = - 5 V$ . (a) (10 points) Find the $g_{m}$ and $r_{o}$ values for the transistors $Q_{2}$ and $Q_{4}$ . (b) (10 points) Find the closed-loop voltage gain $v_{o} / v_{s}$ .