期刊文献+

用于MEMS红外传感器的集成低噪声CMOS接口电路设计 被引量:5

A Low-Noise CMOS Interface Circuit for Monolithic MEMS Infrared Sensor
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摘要 实现了一种应用于采集MEMS红外传感器微弱信号的低噪声CMOS接口电路.该电路应用了斩波技术(CHS),对斩波技术中抑制低频噪声的效率分析表明其可以有效降低低频噪声.利用苏州和舰科技(HJTC)的商用0.18μmCMOS工艺流程制作的试样芯片.测试结果证实了此电路的工作原理.整个斩波放大系统的增益为84.9dB,带宽160Hz,等效输入噪声87nV/rtHz. A low-noise CMOS interface circuit employing the chopper technique is designed to amplify the weak signal from the MEMS infrared sensor in this paper. Theoretical analysis indicates that the low frequency noise was efficiently reduced. After integrated in a commercial 0.18 μm CMOS process supplied by HJTC, the test results demonstrates the function of the circuit,with a 84.9 dB gain, 160 Hz bandwidth, and an equivalent input low frequency noise 87 nV/rtHz.
出处 《传感技术学报》 CAS CSCD 北大核心 2007年第10期2203-2206,共4页 Chinese Journal of Sensors and Actuators
基金 国家973项目课题支持(2006CB300406)
关键词 CMOS接口电路 单片集成MEMS 斩波技术 红外传感器 CMOS interface circuit monolithic MEMS chopper technique infrared sensor
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参考文献7

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同被引文献35

  • 1王瑞凤,张彦朴,许志艳.激光技术军事应用的现状及发展趋势[J].红外与激光工程,2007,36(z1):576-579. 被引量:15
  • 2殷刚毅.MEMS器件IP库及系统应用[J].传感技术学报,2005,18(4):886-889. 被引量:6
  • 3尹韬,杨海钢,刘珂.一种适用于微传感器读出电路的低噪声、低失调斩波放大器[J].Journal of Semiconductors,2007,28(5):796-801. 被引量:19
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  • 10李嘉明.高精度宽带宽CMOS全差分运算放大器技术研究[D].成都:电子科技大学,2004:28-29.

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