| 一种低压新型曲率补偿基准电压源设计 |
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| 引用本文： | 肖本,冯宁,肖明.一种低压新型曲率补偿基准电压源设计[J].电子科技,2013,26(9):65-68. |
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| 作者姓名： | 肖本 冯宁 肖明 |
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| 作者单位： | (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) |
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| 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。
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| 关 键 词： | 带隙基准源 曲率校正 温度系数 I2PTAT |
A Curvature-compensated Bandgap Reference with Low Supply Voltage |
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| XIAO Ben
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FENG Ning
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XIAO Ming.A Curvature-compensated Bandgap Reference with Low Supply Voltage[J].Electronic Science and Technology,2013,26(9):65-68. |
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| Authors: | XIAO Ben FENG Ning XIAO Ming |
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| Affiliation: | (1.School of Electrical Engineering,Guangdong Jidian Polytechnic,Guanzhou 510515,China;2.Department of Analog Design,TI Semiconductors Corporation,Shenzhen 518052,China) |
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| 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. |
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| Keywords: | bandgap reference curvature correction I2PTAT |
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