A Nanopower Supply-Insensitive CMOS Vth Extractor

In this paper, a nanopower supply-insensitive CMOS threshold voltage extractor circuit is proposed, which can meet today’s industry demands for portable devices to operate under very low power consumption and large supply voltage variations. Simulation results, based on CMOS 0.18um process, show that, the threshold voltage of CMOS transistors can be extracted with less than 0.01% error for wide power supply range. At the same time, the proposed V th extractor can operated with less than 300nW power consumption for 1.3V power supply.