Let the BJTs in the differential amplifi er of Fig. P4.56 have 0 5 150 and VA 5 75 V. (a) Using half-circuit analysis, fi nd adm, acm, Rid, Ric, and the CMRR, both for single-ended and double-ended...

Let the BJTs in the differential amplifi er of Fig. P4.56 have 0 5 150 and VA 5 75 V. (a) Using half-circuit analysis, fi nd adm, acm, Rid, Ric, and the CMRR, both for single-ended and double-ended utilization. (b) If the current sink biasing Q2 is 10% higher than the nominal value shown, how is the CMRR (double-ended utilization) affected? Hint: develop an expression for Dgmygm in terms of Dgm1ygm1 and Dgm2ygm2.