For the supply voltage of 2.5 V, the normalised on resistance of NMOS and PMOS transistors equal 13 kΩ and 31 kΩ respectively. From the layout, W/L ratios of the transistor to be 1.5 for the NMOS and 4.5 for PMOS. Determine the propagation delay of CMOS inverter for load capacitance is 6fF.
1
tp = 31.05 ps
2
tp = 36 ps
3
tp = 29 ps
4
tp = 65 ps