| 一种采用CDS电路的高精度温度传感器 |
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| 引用本文： | 孔谋夫. 一种采用CDS电路的高精度温度传感器[J]. 传感技术学报, 2012, 25(7): 907-910 |
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| 作者姓名： | 孔谋夫 |
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| 作者单位： | 电子科技大学电子薄膜与集成器件国家重点实验室 |
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| 基金项目： | 2011年度高等学校博士学科点专项科研基金项目(20110185110003) |
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| 摘 要： | 采用相关双采(CDS)电路,设计了一种新颖的高精度温度传感器,该温度传感器可用于CMOS集成电路的过温检测。传感器的温度感应部分仅采用9个MOS管,其输出的包含温度信息的电流信号通过一个电容进行积分,随后采用CDS电路对积分信号进行消除kTC噪声和降低1/f噪声处理,并同时进行采样处理,得到与温度成正比的电压信号。该新型温度传感器与标准CMOS工艺兼容,且仿真结果表明其具有较高的性能。
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| 关 键 词： | CMOS温度传感器 电流积分电路 CDS |
An Accurate CMOS Temperature Sensor with a CDS circuit |
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| KONG Moufu. An Accurate CMOS Temperature Sensor with a CDS circuit[J]. Journal of Transduction Technology, 2012, 25(7): 907-910 |
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| Authors: | KONG Moufu |
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| Affiliation: | KONG Moufu(State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | This paper presents a novel accurate CMOS temperature sensor with a correlated double sampling(CDS)circuit designed,and simulated for thermal testing and monitoring chips in CMOS technologies.In this design,a nine-MOS-transistor temperature sensor ’ s output current,which includes temperature characteristic integrated by a capacitor,the integral voltage signal is sent to a CDS circuit to eliminate kTC noise and reduce 1/f noise of the circuit.The new temperature sensor is compatible with standard CMOS technologies,and the simulation results show its good performances. |
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| Keywords: | CMOS temperature sensor current integration circuit CDS |
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