Electronics and Communication Engineering - Exam Questions Papers - Discussion

Consider the CMOS circuit shown, where the gate voltage V_G of the n-MOSEFT is increased from zero, while the gate voltage of the p-MOSFET is kept constant at 3 V. Assume that, for both transistor, the magnitude of the threshold voltage is 1 V and the product of the transconductor parameter and the (W/L) ratio, i.e. the quality μC_0x(W/L), is 1mA. V^-2.

For small increase in V_G beyond IV, which of the following gives the correct description of the region of operation of each MOSFET?