Assume \(I_{\mathrm{REF}}=250 \mu \mathrm{A}\) and \((W / L)_{8}=5\) in the CMOS op-amp shown in Figure 13.15. Determine

(a) the quiescent currents in \(M_{6}\) and \(M_{7}\) and

(b) the overall small-signal voltage gain. Assume transistor parameters as given in Example 13.10.

Data From Example 13.10:-

Transcribed Image Text:

Determine the dc and ac characteristics of a three-stage CMOS op-amp. Consider the three-stage CMOS op-amp shown in Figure 13.15. The NMOS transistor parameters are VTN = 0.7 V, K = 80 A/V, = 0.01 V-1, and the PMOS transistor parameters are VTP = -0.7 V, k = 40 A/V, p = 0.015 V-1. Assume the reference current is IREF = 160 A.