8.73 The purpose of this problem is to investigate the signal currents and voltages at various points throughout a cascade

Amplifier circuit. Knowledge of this signal distribution is very useful in designing the circuit so as to allow for the equired signal swings. Figure P8.73 shows aCMOS cascode amplifier with all dc voltages replaced with signal grounds. As well, we have explicitly shown the resistance ro of each of the four transistors. For simplicity, we are assuming that the four transistors have the same gm and ro. The amplifier is fed with a signal vi .