Title :
A 5.8ppm/°C bandgap reference with a preregulator
Author :
Mu, Feiyan ; Du, Mingying ; Lin, Jie
Author_Institution :
Department of Electronic Engineering, Chengdu College of UESTC (University of Electronic Science and Technology of China) Chengdu China
Abstract :
A voltage reference is introduced in 0.5μm BiCMOS technology in this paper. With curvature compensation, a low offset operational amplifier and a temperature-compensated preregulator, the temperature coefficient of the reference has achieved 5.8ppm/°C from −55°C to 125°C. The preregulator also reduces the power supply dependence of the reference. The reference´s PSRR at DC is 92dB.
Keywords :
Equations; Feedback loop; Logic gates; Photonic band gap; Power supplies; Temperature dependence; Temperature distribution; BiCMOS; bandgap reference; curvature compensation; low offset; preregulator;
Conference_Titel :
E -Business and E -Government (ICEE), 2011 International Conference on
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-4244-8691-5
DOI :
10.1109/ICEBEG.2011.5881669
