Question

For the circuit below perform dc analysis (assuming VBE = 0.7 V and neglecting the Early effect). Calculate the dc current and voltages everywhere in the circuit.Note that Q6 has

four times the area of each of the Q9 and Q3. Transistors Q1 and Q have a B=100. Find input common-mode range of this op amp. Finally, find the total gain of the amplifier.

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