Sedra Chapter 11 *11.39 Figure P11.39 shows a series-shunt amplifier in which the three MOSFETs are sized to operate at Vor -0.2 V. Let V-0.5 V and V-10 V. The current sources utilize single transistors and thus have output resistances equal to To 4₁ = 0.1 mA ( G₁ VDD = 1.8 V G₁ Q3 -OV 1₁ = 0.1 mA 1=0.1 mAY S₁ V₁ R₂ ww 18 ΚΩ Roue R₁ VDC=0.9 V 2 ΚΩ Figure P11.39 (a) Show that the feedback is negative. (b) Assuming the loop gain to be large, what do you expect the closed-loop voltage gain V/V to be approximately? (c) If V; has a zero de component, find the de voltages at nodes S₁, G2, S3, and G3. Verify that each of the current sources has the minimum required de voltage across it for proper operation. (d) Find the A circuit. Calculate the gain of each of the three stages and the overall voltage gain, A. (e) Find ẞ. (f) Find A= V/V. By what percentage does this value differ from the approximate value obtained in (b)? (g) Find the output resistance Rout

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