Calculate the output resistance r^c_oof the common-emitter Darlington transistor of Fig. 3.75 as a function of I_BIAS. Do not neglect either r_o1or r_o2in this calculation, but you may neglect r_band r_μ. If I_C2= 1mA, what is r^c_ofor I_BIAS= 1mA? For I_BIAS= 0?

Figure 3.75

Transcribed Image Text:

12 Q2 ac ground IBIAS