So I have the following differential amplifier:
I got 2 questions.
1. I know the small signal gain equation for this differential amplifier if the body was connected to the source (if Vg5 is the output, excluding Q5 for now, also Q1=Q2 and Q3=Q4) is simply A = gm(ro2||ro4), but in this problem the body is connected to ground. Does that change the gain equation? If so, how?
2. Does Q5, the common drain output buffer, change the gain also? If so, how?
I got 2 questions.
1. I know the small signal gain equation for this differential amplifier if the body was connected to the source (if Vg5 is the output, excluding Q5 for now, also Q1=Q2 and Q3=Q4) is simply A = gm(ro2||ro4), but in this problem the body is connected to ground. Does that change the gain equation? If so, how?
2. Does Q5, the common drain output buffer, change the gain also? If so, how?