We wish to design an EC pair of the type of so that when driven with vI1 5 (10 mV) cos t and vI 2 5 0 it produces the largest possible output signal under the constraint that neither collector voltage...

We wish to design an EC pair of the type of so that when driven with vI1 5 (10 mV) cos t and vI 2 5 0 it produces the largest possible output signal under the constraint that neither collector voltage ever drops below 0 V, thus avoiding forward-biasing the B-C junctions of the BJTs. (a) If VCC 5 2VEE 5 12 V, RC1 5 RC2 5 10 kV, and REE 5 `, what is the required IEE, assuming negligible base currents? Hint: increasing IEE to raise a will also lower VO1 and VO2 and thus bring the BJTs closer to saturation. The most critical instants are when vo1 and vo2 reach their negative peaks. (b) Assuming ro 5 `, what is the ensuing gain a? What are the total signals vO1, vO2, and vOD?