A 145mV to 1.2V single ended level converter circuit for ultra-low power low voltage ICs

This paper presents an ultra-low swing level converter with integrated charge pumps that shows measured conversion in a 130nm CMOS test chip from an input at 145mV swing to a 1.2V output. Lowering the input allowable for a single ended level converter supports energy harvesting systems that need to use very low voltages.