3. Consider the following circuit. R1 2 SV 8 www -5V voutl D vini Rc1 Q1 03 -5V Rc2 Q2 vout2 D 0 vin2 (a) Assume that Q3

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3 Consider The Following Circuit R1 2 Sv 8 Www 5v Voutl D Vini Rc1 Q1 03 5v Rc2 Q2 Vout2 D 0 Vin2 A Assume That Q3 1 (87.93 KiB) Viewed 50 times

3. Consider the following circuit. R1 2 SV 8 www -5V voutl D vini Rc1 Q1 03 -5V Rc2 Q2 vout2 D 0 vin2 (a) Assume that Q3 and Q4 are magched, and have very large B. Determine the value of Rl that will provide DC emitter current of 0.25 mA for each Q1 and Q2. (6 points) (b) Assume that Q1 and Q2 are matched, and have very large B. Determine the value of Rel and Re2 that results in a DC voltage of 3V at the collectors of QI and Q2. (6 points) (e) Determine the value of differential mode voltage gain. (vout2-vout1)/(vinl-vin2) (7 points) (d) Determine the value of differential mode input resistance. (7 points) (e) If it is required to raise the value of differential mode input resistance by a factor of 5 by including a resistor R, in the emitter of Q1 and Q2. What value of Re is required? (7 points) (1) What is the resulting value of the differential mode voltage gain? (7 points)