Title :
A Precise Bandgap Reference with High PSRR
Author :
Hui, Shen ; Xiaobo, Wu ; Xiaolang, Yan
Author_Institution :
Institute of VLSI Design, Zhejiang University, Hangzhou, China, E-mail: shenh@vlsi.zju.edu.cn
Abstract :
Voltage reference with high PSRR (Power Supply Rejection Ratio) and thermal stability is of key importance to power management IC (integrated circuit). By building up a stable internal regulated supply and improving its circuit and layout design, especially that of matching, a bandgap reference with high PSRR was proposed. Simulation results showed that PSRR of the circuit at low frequency was 64dB, and the peak-to-peak output voltage variation was 7.2mV over -40°C to 80°C.
Keywords :
Circuit stability; Energy management; Equations; Operational amplifiers; Photonic band gap; Power supplies; Temperature; Thermal management; Thermal stability; Voltage;
Conference_Titel :
Electron Devices and Solid-State Circuits, 2005 IEEE Conference on
Print_ISBN :
0-7803-9339-2
DOI :
10.1109/EDSSC.2005.1635258
