1. Consider the following differential amplifier. Assume Vuon=0.7 V, and B-100. Ignore early effect (r.=oo) for Q1 and Q

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1 Consider The Following Differential Amplifier Assume Vuon 0 7 V And B 100 Ignore Early Effect R Oo For Q1 And Q 1 (80.71 KiB) Viewed 67 times

1. Consider the following differential amplifier. Assume Vuon=0.7 V, and B-100. Ignore early effect (r.=oo) for Q1 and Q2. R4 is the output resistance of the constant current source 11.. You must draw small signal equivalent circuits and derive expressions for gains and resistances calculations. Memorizing equation is meaningless. There will be 0 point without derivation. vini 0 01 R2 2000 1mA 10V -10V 02 You must show all your work for full credit. R1 20k R3 2000 R4 200k yout Ovinz (a) Find the differential mode input voltage gain (A-v/v. V-Var-Vin) (b) Find common mode input voltage gain. (A.-Yo/Viem) You must use half circuit analysis. (c) Find common mode input resistance. (R) (8 points) (d) Output resistance. (R) (8 points) (e) Common Mode Rejection Ratio (CMRR) in dB. (6 points) (f) What will be DC currents and voltage (Ici. Icz. Vaa) when V-0 V (DC) and V-IV (DC). (3 points) (10 points) (10 points)