半导体学报2012，Vol.33Issue(2)：138-142,5.DOI:10.1088/1674-4926/33/2/025014
A sub-1 V high-precision CMOS bandgap voltage reference
A sub-1 V high-precision CMOS bandgap voltage reference
摘要
Abstract
A third-order,sub-1 V bandgap voltage reference design for low-power supply,high-precision applications is presented.This design uses a current-mode compensation technique and temperature-dependent resistor ratio to obtain high-order curvature compensation.The circuit was designed and fabricated by SMIC 0.18μm CMOS technology.It produces an output reference of 713.6 mV.The temperature coefficient is 3.235 pprn/℃ in the temperature range of-40 to 120 ℃,with a line regulation of 0.199 mV/V when the supply voltage varies from 0.95 to 3 V.The average current consumption of the whole circuit is 49 μA at the supply voltage of 1 V.关键词
bandgap reference/ curvature compensation/ low power supply/ low temperature coefficientKey words
bandgap reference/ curvature compensation/ low power supply/ low temperature coefficient引用本文复制引用
廖峻,赵毅强,耿俊峰..A sub-1 V high-precision CMOS bandgap voltage reference[J].半导体学报,2012,33(2):138-142,5.
