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《Journal of Guangxi Normal University(Natural Science Edition)》 2016-01
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A Correctable Low-power Voltage Reference with POR

CAI Chaobo;FAN Dongdong;SONG Shuxiang;CEN Mingcan;College of Electronic Engineering,Guangxi Normal University;  
In order to solve the problem of accuracy problem of voltage reference in low power and deep sub-micron process,a correctable ultra low power voltage reference with power on reset(POR)is proposed,by introducing the MOS tube working in the sub-threshold region and digital trimming technology.The voltage reference is simulated by Spectre in TSMC90 nm COMS technology.Simulation results show that,the designen reference achieve total current of only 0.876μA,temperature drift coefficient of 24.4 10-6/℃ and tunable voltage with 25 mV steps.Compared with traditional voltage reference,the proposed voltage reference has the advantages of low temperature drift coefficient,easy correction and low power consumption,and can be applied to low-power and portable electronic devices.
【Fund】: 国家自然科学基金资助项目(61361011);; 广西高校优秀青年骨干教师培养计划项目(GXQG022014002);; 广西自然科学基金资助项目(2014jjAA70058);; 广西高校科学技术研究项目(LX2014032)
【CateGory Index】: TN432
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