Section 11.3: The Feedback Voltage Amplifier D11.4 Figure 11.4.1 23 VDD 1=300 μA Rout Figure 11.4.1 shows a current-mirror-loaded dif- ferential amplifier to which series-shunt feedback is applied through the voltage divider (R1, R2), where R1 R2470 k2. All MOSFETs have VAI 6V and are operated at | Vorl=0.15 V. The input signal source has a zero de component. (a) Find the loop gain Aẞ and hence the value of A. (b) Find the values of R1 and R2 that result in a closed-loop gain Vo/Vs of exactly 6 V/V.

Fig: 1