Consider the integrated-circuit CS amplifier in Fig. P10.22 for the case IBIAS = 100 A, Q2 and Q3 are matched, and Rsig = 20 k.

Consider the integrated-circuit CS amplifier in Fig. P10.22 for the case IBIAS = 100 µA, Q2 and Q3 are matched, and Rsig = 20 kΩ. For Q1: μnCox = 400 µA/V2, VA = 5V, W/L = 5 µm/0.4 µm, Cgs = 30 fF, and Cgd = 5 fF. For Q2: |VA| = 5 V. Neglecting the effect of the capacitance inevitably present at the output node, find the low-frequency gain, the 3-dB frequency fH, and the frequency of the zero fZ.

 

IBIAS Q3 Q2 Vsig Rsig OV