| 一种无运放电流模式带隙基准设计 |
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| 引用本文： | 胡养聪,周伟,周长胜.一种无运放电流模式带隙基准设计[J].现代电子技术,2010,33(4):19-22,34. |
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| 作者姓名： | 胡养聪 周伟 周长胜 |
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| 作者单位： | 1. 电子科技大学光电信息学院,电子薄膜与集成器件国家重点实验室,四川,成都,610054
2. 中国科学院嘉兴微电子与系统工程中心,浙江,嘉兴,314000 |
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| 基金项目： | 2009嘉兴市科技计划 |
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| 摘 要： | 为满足集成电路中低功耗／低温度系数的要求，基于负反馈钳位原理，采用分段线性补偿技术，通过在高低温度段分别插入非线性电流修正项对基准进行了曲率补偿，得到一种新型的无需运放的曲率补偿电流模式带隙电压基准源。仿真得到典型工艺下电路在室温27℃，工作电压4．5V下输出电压1．25062V，工作电流小于38pA，功耗小于170μW。在-40～＋150℃。宽温度范围内，基准电压在1．25018～1．25086V之间变化，温度系数约为2．86ppm／℃。
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| 关 键 词： | 带隙电压基准源 负反馈钳位 电流模式 无运放 分段线性补偿 |
Design of Current Mode Bandgap Voltage Reference without Opamp |
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| HU Yangcong,ZHOU Wei,ZHOU Changsheng.Design of Current Mode Bandgap Voltage Reference without Opamp[J].Modern Electronic Technique,2010,33(4):19-22,34. |
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| Authors: | HU Yangcong ZHOU Wei ZHOU Changsheng |
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| Institution: | HU Yangcong1,ZHOU Wei1,ZHOU Changsheng2(1.Integrated Devices School of Optoelectronic Information,University of Electronic Science , Technology of China,Chengdu,610054,China,2.Electronic Design , Application Center,Chinese Academy of Sciences,Jiaxing,314000,China) |
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| Abstract: | In order to meet requirement of low power, low temperature coefficient in the integrate circuit, based on negative feedback clamping,a new current mode curvature compensation bandgap voltage reference without Opamp is presented, using mutipiecewise compensation. The simulation results show at a 4. 5 V supply voltage, the current consumption is less than 38 μA and the power consumption less than 170/2W. It also shows that the range of output is 1. 250 18-1. 250 86 V and the temperature coefficient is 2.86 ppm/℃ during the temperature is -40～＋150℃. |
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| Keywords: | bandgap voltage reference negative feedback clamping current mode without opamp piecewise compensation |
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