A fully integrated, untrimmed CMOS instrumentation amplifier withsubmicrovolt offset

Menolfi C.; Qiuting Huang

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A fully integrated, untrimmed CMOS instrumentation amplifier withsubmicrovolt offset

机译：具有亚微伏级失调的完全集成，未修整的CMOS仪表放大器

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A low-noise CMOS instrumentation amplifier intended fornlow-frequency thermoelectric microsensor applications is presented thatnachieves submicrovolt offset and noise. Key to its performance is thenchopper modulation technique combined with a bandpass filter and anmatching on-chip oscillator. No external components or trimming arenrequired. The achievable offset performance depends on the bandpassnfilter Q and the oscillator-to-bandpass filter matching accuracy.nConstraints are derived for an optimum Q and a given matching accuracy.nThe improvement of common-mode rejection ratio (CMRR) in choppernamplifiers is discussed. The amplifier features a total gain ofn77±0.3 dB and a bandwidth of approximately 600 Hz. The measurednlow-frequency input noise is 8.5 nV/√Hz and the input offset isn600 nV. The measured low-frequency CMRR is better than 150 dB. Thencircuit has been implemented in a standard 1-Μm single-poly CMOSnprocess

机译：提出了一种适用于低频热电微传感器应用的低噪声CMOS仪表放大器，可实现亚微伏级的失调和噪声。斩波调制技术结合了带通滤波器和匹配的片上振荡器，是其性能的关键。无需外部组件或修整。可获得的失调性能取决于带通滤波器Q和振荡器至带通滤波器的匹配精度。n得出了最佳Q和给定匹配精度的约束条件。n讨论了斩波放大器中共模抑制比（CMRR）的改进。该放大器的总增益为n77±0.3 dB，带宽约为600 Hz。测得的低频输入噪声为8.5 nV /√Hz，输入失调为600 nV。测得的低频CMRR优于150 dB。那么电路已经在标准的1μm单多晶硅CMOSn工艺中实现

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来源
《IEEE Journal of Solid-State Circuits》 |1999年第3期|p.415-420|共6页
作者
Menolfi C.; Qiuting Huang;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类一般性问题;基本电子电路;
关键词
CMOS analogue integrated circuits; impedance matching; instrumentation amplifiers; microsensors; 1 micron; 600 Hz; 600 nV; 76.7 to 77.3 dB; bandpass filter; bandwidth; chopper modulation technique; common-mode rejection ratio; low-frequency CMRR; low-frequency thermo;

机译：CMOS模拟集成电路;阻抗匹配;仪表放大器;微传感器;1微米;600 Hz;600 nV;76.7至77.3 dB;带通滤波器;带宽;斩波调制技术;共模抑制比;低频CMRR;低频热的;

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专利

1. A fully integrated, untrimmed CMOS instrumentation amplifier with submicrovolt offset [J] . Menolfi C., Qiuting Huang IEEE Journal of Solid-State Circuits . 1999,第3期

机译：具有亚微伏级失调的完全集成，未修整的CMOS仪表放大器
2. Offset & Noise Reduction of CMOS Instrumentation Amplifier using Chopper Stabilization Technique [J] . Buddhi Prakash Sharma, Rajesh Mehra International Journal of Engineering Science and Technology . 2016,第10期

机译：使用斩波稳定技术的CMOS仪表放大器的失调和降噪
3. CMOS Instrumentation Amplifier with Offset Cancellation Circuitry for Biomedical Application [J] . F. MOHD-YASIN, M. T. YAP, M. B. I. REAZ WSEAS Transactions on Circuits and Systems . 2007,第1期

机译：具有偏移抵消电路的CMOS仪表放大器，用于生物医学应用
4. An untrimmed CMOS amplifier with high CMRR and low offset for sensor applications [C] . Zhang X.L., Chan P.K. IEEE Asia Pacific Conference on Circuits and Systems . 2008

机译：具有高CMRR和传感器应用的低偏移的未经监测的CMOS放大器
5. Linearization techniques for integrated CMOS power amplifiers and a high efficiency class-F gallium nitride power amplifier. [D] . Ko, Sangwon. 2007

机译：集成CMOS功率放大器和高效F类氮化镓功率放大器的线性化技术。
6. A 180-Vpp Integrated Linear Amplifier for Ultrasonic Imaging Applications in a High-Voltage CMOS SOI Technology [O] . Kexu Sun, Zheng Gao, Ping Gui, -1

机译：180Vpp集成线性放大器用于高压CMOS SOI技术中的超声成像应用
7. CMOS Instrumentation Amplifier with Offset Cancellation Circuitry for Biomedical Application [O] . Mohd-Yasin Faisal, Yap M., I Reaz M. 2006

机译：具有偏移抵消电路的CMOS仪表放大器，用于生物医学应用

A fully integrated, untrimmed CMOS instrumentation amplifier withsubmicrovolt offset

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