Title :
A 1-V piecewise curvature-corrected CMOS bandgap reference
Author :
Li Jing-hu ; Fu Yu-nan ; Wang Yong-sheng
Author_Institution :
Micro-Electron. Center, Harbin Inst. of Technol., Harbin, China
Abstract :
A 1-V piecewise curvature-corrected CMOS bandgap reference (BGR) is proposed. It features in utilizing piecewise corrected current to a conventional first-order current-mode BGR. The corrected current is zero, exponential with temperature and proportional to the squared temperature in the lower, middle and upper temperature range (TR). Simulated results indicate that proposed BGR achieves temperature coefficient (TC) of 1.18ppm/°C in the TR of -30-130°C, power supply rejection ratio (PSRR) of -52dB and line regulation of 0.1mV/V in the supply range of 1-1.8V. The maximum power consumption is 29.5μW. It is designed in HJTC 0.18-μm n-well CMOS process.
Keywords :
CMOS integrated circuits; energy gap; HJTC; first-order current-mode BGR; maximum power consumption; piecewise corrected current; piecewise curvature-corrected CMOS bandgap reference; power 29.5 muW; power supply rejection ratio; temperature -30 degC to 130 degC; temperature coefficient; voltage 1 V to 1.8 V; CMOS process; CMOS technology; Cities and towns; Low voltage; Permission; Photonic band gap; Power supplies; Silicon; Temperature dependence; Temperature distribution; PSRR; bandgap reference; line regulation; piecewise curvature-corrected; temperature coefficient;
Conference_Titel :
Low Power Electronics and Design (ISLPED), 2008 ACM/IEEE International Symposium on
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8634-2
Electronic_ISBN :
978-1-60558-109-5
DOI :
10.1145/1393921.1393996
