A 6.5 nA Static Self-Calibrating Programmable Voltage Reference for Smart SoCs

This paper presents a novel architecture of a self-calibrating programmable voltage reference with nanoampere current consumption. The output voltage is generated by a programmable impedance matrix, based on MOS transistors and resistors, and periodically calibrated with a duty-cycled bandgap. In application domains where the temperature exhibits a low rate-of-change, an average current consumptio...