A high PSR SOI current-mode bandgap reference

Abstract

This paper presents a high PSR current mode bandgap references. The circuits are designed with adopting GSMC 130 nm SOI process. The bandgap's output voltage value is 0.528V and current value is 10μA. It is tapped out that the temperature coefficient of voltage reference is 115 ppm/°C from -40°C to 125°C and current reference is less than 59.4 ppm/°C, power consumption is 173 μW, the PSR is 95.8 dB at 100kHz, and adjusting output resistance can realize other output voltage value with no variation on temperature coefficient.