Consider the two bipolar current mirrors shown in Fig. P9.22, where is a bias current plus a signal current. Assuming that the base resistance for each transistor is and dominates the output noise,...

Consider the two bipolar current mirrors shown in Fig. P9.22, where is a bias current plus a signal current. Assuming that the base resistance for each transistor is and dominates the output noise, estimate the resulting SNR (in dB) for the two current mirrors over a 50-MHz bandwidth (also assume the output noise is white).