A sub-1 V high-precision CMOS bandgap voltage reference  

作　　者：Liao Jun Zhao Yiqiang Geng Junfeng 廖峻;赵毅强;耿俊峰(School of Electronic Information Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]School of Electronic Information Engineering,Tianjin University,Tianjin 300072,China

出　　处：《Journal of Semiconductors》2012年第2期138-142,共5页半导体学报（英文版）

摘　　要：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 ppm/℃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 49μA at the supply voltage of 1 V.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 ppm/℃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 49μA at the supply voltage of 1 V.

关 键 词：bandgap reference curvature compensation low power supply low temperature coefficient 

分 类 号：TN432[电子电信—微电子学与固体电子学]