广西师范大学学报（自然科学版） ›› 2016, Vol. 34 ›› Issue (1): 26-31.doi: 10.16088/j.issn.1001-6600.2016.01.004

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一款带POR的可校正低功耗电压基准源

蔡超波, 凡东东, 宋树祥, 岑明灿   

  1. 广西师范大学电子工程学院,广西桂林541004
  • 收稿日期:2015-05-04 发布日期:2018-09-14
  • 通讯作者: 宋树祥(1970—),男,湖南双峰人,广西师范大学教授,博士。E-mail:songshuxiang@mailbox.gxnu.edu.cn
  • 基金资助:
    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)

A Correctable Low-power Voltage Reference with POR

CAI Chaobo, FAN Dongdong, SONG Shuxiang, CEN Mingcan   

  1. College of Electronic Engineering,Guangxi Normal University,Guilin Guangxi 541004,China
  • Received:2015-05-04 Published:2018-09-14

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摘要： 为了解决低功耗、深亚微米工艺条件下基准源的精度问题,本文通过引入工作在亚阈值区MOS管和数字微调技术,提出一种带POR的可校正超低功耗电压基准源,并采用TSMC 90 nm COMS工艺对其进行仿真验证。仿真结果表明:该基准源总电流仅为0.876 μA,温度系数为24.4 10-6/℃,微调电压步进为25 mV。本文提出的基准源与传统基准源比,具有低温漂、可校正、低功耗等优点,适用于便携式低功耗电子产品。

关键词: 基准源, 低功耗, 校正, POR

Abstract: 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. Simula-tion results show that,the designen reference achieve total current of only 0.876 μA,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.

Key words: voltage reference, low-power, correction, POR

中图分类号: 

  • TN432
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