10.26 Analyze the high-frequency response of the CMOS amplifier shown in Fig. P10.22 for the case Rsig = 0. The dc bias current is 100 µA. For Q1, μnCox = 400 µA/V2, VA = 5V, W/L = 5 µm/0.4 µm, Cgs = 30 fF, Cgd = 5 fF, and Cdb = 5 fF. For Q2, Cgd = 5 fF, Cdb = 10 fF, and |VA| = 5V. For simplicity, assume that the signal voltage at the gate of Q2 is zero. Find the low-frequency gain, the frequency of the pole, and the frequency of the zero. (Hint) −25 V/V; 254.6 MHz; 31.8 GHz

10.26 Analyze the high-frequency response of the CMOS amplifier shown in Fig. P10.22 for the case Rsig = 0. The dc bias current is 100 µA. For Q1, μnCox = 400 µA/V2, VA = 5V, W/L = 5 µm/0.4 µm, Cgs = 30 fF, Cgd = 5 fF, and Cdb = 5 fF. For Q2, Cgd = 5 fF, Cdb = 10 fF, and |VA| = 5V. For simplicity, assume that the signal voltage at the gate of Q2 is zero. Find the low-frequency gain, the frequency of the pole, and the frequency of the zero. (Hint) −25 V/V; 254.6 MHz; 31.8 GHz

10.26 Analyze the high-frequency response of the CMOS amplifier shown in Fig. P10.22 for the case Rsig = 0. The dc bias current is 100 µA. For Q1, μnCox = 400 µA/V2, VA = 5V, W/L = 5 µm/0.4 µm, Cgs = 30 fF, Cgd = 5 fF, and Cdb = 5 fF. For Q2, Cgd = 5 fF, Cdb = 10 fF, and |VA| = 5V. For simplicity, assume that the signal voltage at the gate of Q2 is zero. Find the low-frequency gain, the frequency of the pole, and the frequency of the zero. (Hint)

−25 V/V; 254.6 MHz; 31.8 GHz

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