A 0.9V-VDD sub-nW resistor-less duty-cycled CMOS voltage reference in 65nm for IoT

This paper presents a 0.9V-VDD sub-nW CMOS voltage reference based on dynamic operation with the absence of large resistors, hence occupying small chip area. The proposed voltage reference is based on the threshold voltage difference between high-Vt and normal-Vt transistors. Switched capacitors are used instead of resistors to reduce chip area and to… CONTINUE READING