Abstract
Smart power chip technology has been realized on the GaN-on-Si platform, featuring monolithically integrated power devices, digital and analog functional blocks. In particular, this paper presents the imperative analog functional block - the voltage reference generator for smart power applications with wide-temperature-range stability. These circuits are shown to be capable of proper functions from room temperature up to 250°C. The optimized voltage reference generator achieved less than 70 ppm/°C drift. It can be used to create a reference voltage for various biasing and sensing circuits.