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现代传感器前置放大器设计误区与对策 被引量：2

Misunderstandings and Countermeasures in Pre-amplifiers Design for Sensor Signal Conditioning
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摘要 结合现代传感器前置放大器构成特点,探讨了现代传感器前置放大器设计过程中的几个误区与对策.结果表明:噪声系数最小有时并不能得到最佳噪声性能;RFI整流误差是一个重要而容易被忽视的误差源;驱动电容性负载的情形常见且易振荡;芯片电源噪声(纹波)频率较高时单电容去耦无效.给出了这些问题的实用解决方法. Considering the features of modern pre-amplifier circuit configurations, several misunderstandings and countermeasures in pre-amplifier design for sensor signal conditioning are studied. The results indicated that sometimes minimizing noise factor can＇t optimize the noise performance sometimes. RFI rectification errors are important error sources and to be often ignored, driving capacitive loads is common and oscillation problem often occurs, and using a single decoupling capacitor isnt an effective way to decoupling ICs at high power noise （ripple） frequencies. The solu- tions to these problems are proposed.
作者 周胜海 龙晔君 涂友超
机构地区 信阳师范学院物理电子工程学院 郑州工业贸易学校
出处 《信阳师范学院学报（自然科学版）》 CAS 北大核心 2013年第4期592-595,共4页 Journal of Xinyang Normal University(Natural Science Edition)
基金 河南省科技攻关项目(132102210049) 河南省教育厅科学技术研究重点项目(13B430228)
关键词 噪声系数 RFI整流 电容性负载 去耦电容 noise factor RFI rectification capacitive loads decoupling capacitors
分类号 TP216 [自动化与计算机技术—检测技术与自动化装置]
  • 相关文献

参考文献9

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二级参考文献21

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共引文献7

同被引文献21

  • 1Jacob Fraden.Handbook of Modern Sensors[M].4th ed.Be- rlin:Springer-Verlag,2010:173-246.
  • 2Jon S Wilson.Sensor Technology Handbook[M].Burlington (MA,USA):Newnes,2005:31-136,109-110.
  • 3Johan Huijsing.Operational Amplifiers:Theory and Design [M].2nd ed.Berlin:Springer-Verlag,2011:291-308.
  • 4Paul R.Gray,Paul J.Hurst,Stephen H.Lewis,et al.Analysis and Design of Analog Integrated Circuits[M].5th ed.Hob- oken(NJ,USA):John Wiley & Sons,2009:796-870.
  • 5Texas Instruments Incorporated.Fully Differential Ampli- fier [EB/OL]. [2013-12-10].http://www.ti.com/lsds/ti/ampli fiers-linear/fully-differential-amplifier-products.page.
  • 6Marcel J.M.Pelgrom.Analog-to-Digital Conversion[M].2nd ed.Berlin:Springer-Verlag,2013:325-418.
  • 7Analog Devices,Inc.AD8556[EB/OL].[2013-11 - 18].http: //www.analog.com/statie/imported-files/data_sheets/AD85 56.pdf.
  • 8Analog Devices,Inc.AMP01 [EB/OL]. [2013-11 - 18].http: //www.analog.condstatic/imported-files/data_sheets/AMP 01.pdf.
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引证文献2

二级引证文献1

信阳师范学院学报（自然科学版）
2013年 第4期

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