Design of GaN-based Voltage Reference Circuit for a Wide-Temperature-Range Operation

Reference voltage generators are important for various electronic systems and their stability with respect to the voltage, temperature, and process is essential for the system’s normal operation. This paper presents a GaN-based voltage reference circuit, which can operation stability for a wide temperature range that is ranging from room temperature up to 250 °C. Main circuit structure of the GaN-based voltage reference circuit is described. The low power dissipation is achieved with the set of operation point. The simulation evaluation is conducted, including the characteristics of main components and key relationship of the reference output under a wide temperature range. Main results are provided to validate the effectiveness of the GaN-based design.