An NMOS current source with I_(D)=0.5mA must operate with drain-source voltages as low as 0.4V. If the minimum required output impedance is 20kOmega , determine the width and length of the device. Calculate the gate-source, gate-drain, and drain-substrate capacitance if the device is folded as in Fig. 2.33 and E=3mu m.
2.5. An NMOS current source with Ip=0.5 mA must operate with drain-source voltages as low as 0.4 V.If the minimum required output impedance is 20 k,determine the width and length of the device.Calculate the gate-source, gate-drain, and drain-substrate capacitance if the device is folded as in Fig.2.33 and E =3 m. t.node X.is.equalto Vnp.Assuming that