Title :
A bandgap reference circuit with temperature compensation
Author :
Wang, Shuai ; Xing, Jianli
Author_Institution :
Dept. of Electron. Eng., Xiamen Univ., Xiamen, China
Abstract :
A second-order compensated bandgap reference (BGR) using current proportional to absolute temperature (PTAT) is proposed in this paper. This proposed BGR utilize a PTAT current to improve the temperature coefficient (TC) of base-emitter voltage VBE, and make temperature characteristic of the BGR optimized. The simulation based on nee 2um BiCMOS process library shows a lower TC (only 9.07 ppm/°C) and a variation in the output voltage of the BGR less than 3.7mV with a power supply range from 3V to 10V.
Keywords :
BiCMOS integrated circuits; compensation; energy gap; reference circuits; BGR; BiCMOS process library; PTAT; VBE; bandgap reference circuit; base-emitter voltage; output voltage; power supply range; proportional to absolute temperature; second-order compensated bandgap reference; temperature characteristic; temperature coefficient; temperature compensation; Current density; Mirrors; Photonic band gap; Power supplies; Temperature; Temperature dependence; Thermal stability; Bandgap reference; Curvature compensation; Temperature coefficient;
Conference_Titel :
Anti-Counterfeiting Security and Identification in Communication (ASID), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-6731-0
DOI :
10.1109/ICASID.2010.5551833
