›› 2013, Vol. 26 ›› Issue (9): 65-.

• 论文 • 上一篇    下一篇

一种低压新型曲率补偿基准电压源设计

肖本,冯宁,肖明   

  1. (1.广东机电职业技术学院 电气工程学院,广东 广州 510515;2.德州仪器半导体有限公司 模拟设计部,广东 深圳 518052)
  • 出版日期:2013-09-15 发布日期:2013-09-25
  • 作者简介:肖本(1977—),男,工程师。研究方向:模拟和功率集成电路设计。E-mail:987559688@qq.com

A Curvature-compensated Bandgap Reference with Low Supply Voltage

XIAO Ben,FENG Ning,XIAO Ming2   

  1. (1.School of Electrical Engineering,Guangdong Jidian Polytechnic,Guanzhou 510515,China;2.Department of Analog Design,TI Semiconductors Corporation,Shenzhen 518052,China)
  • Online:2013-09-15 Published:2013-09-25

摘要:

基于Chrt0.35 μmCMOS工艺,设计了一种基于亚阈值工作区的一阶温度补偿和I2PTAT电路组成的带隙基准电压源。芯片测试结果表明,电路在1.2 V电源电压下便可工作;在温度-20~120 ℃范围内,基准电压源平均温度系数<2×10-6/℃。该带隙基准源具有良好的可应用于高精度模数转换器(ADC)、数模转换器(DAC)和系统集成芯片(SOC)中。

关键词: 带隙基准源, 曲率校正, 温度系数, I2PTAT

Abstract:

A curvature-compensated bandgap reference voltage is designed based on a circuit that produces an I2PTAT current and a circuit works on CMOS Sub-threshold based on Chrt 0.35 μm CMOS model.Testing results of chip show that the bandgap reference operates at 1.2 volts,and has an average temperature coefficient less than2×10-6/℃ between -20 to 120 ℃.The bandgap reference can be used in high resolution ADC,DAC,and soc chip.

Key words: bandgap reference;curvature correction;I2PTAT

中图分类号: 

  • TN432