A CMOS feedback amplifier is shown in Fig. 8.53. If the dc input voltage is zero, calculate the overall gain o / i and

A CMOS feedback amplifier is shown in Fig. 8.53. If the dc input voltage is zero, calculate the overall gain Ï…_o/Ï…_iand the output resistance. Compare your answer with a SPICE simulation. Use μ_nC_ox= 60 × 10^ˆ’6A/V²,μ_pC_ox= 30 × 10^ˆ’6A/V², V_tn= 0.8 V, V_tp= ˆ’ 0.8 V, λ_n= |λ_p| = 0.03 V^ˆ’1, and γ_n= γ_p= 0.

Fig. 8.53:

VDD = 5 V 20 M. 20 M3 1 Ma 40 100 R, 20 k2 M1 M2 40 40 R2 1 k2 1 40 40 M7 20 Vss =-5 V