| 基于低噪声运放的传感器前置放大器设计 |
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| 引用本文： | 周胜海,郭淑红. 基于低噪声运放的传感器前置放大器设计[J]. 仪表技术与传感器, 2006, 0(9): 38-40 |
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| 作者姓名： | 周胜海 郭淑红 |
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| 作者单位： | 1. 信阳师范学院,河南,信阳,464000
2. 信阳农业高等专科学校,河南,信阳,464000 |
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| 基金项目： | 河南省自然科学基金;河南省教育厅自然科学基金 |
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| 摘 要： | 随着低噪声运放技术的发展，基于低噪声运放的传感器前置放大器将得到越来越广泛的应用。与分立元件的传感器前置放大器设计相比，基于低噪声运放的传感器前置放大器设计面临一些新的挑战。探讨了基于低噪声运放的传感器前置放大器设计中的若干技术问题，包括低噪声运放的选择、同相放大与反相放大的选择、负反馈对噪声性能的影响、噪声匹配、外围电阻选择及合理布局布线。
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| 关 键 词： | 传感器 前置放大器 运放 低噪声 |
| 文章编号： | 1002-1841（2006）09-0038-03 |
| 收稿时间： | 2006-01-18 |
| 修稿时间： | 2006-04-23 |
Design of Preamplifiers for Sensors Based on Low-noise Operational Amplifiers |
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| ZHOU Sheng-hai,GUO Shu-hong. Design of Preamplifiers for Sensors Based on Low-noise Operational Amplifiers[J]. Instrument Technique and Sensor, 2006, 0(9): 38-40 |
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| Authors: | ZHOU Sheng-hai GUO Shu-hong |
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| Affiliation: | 1.Xinyang Normal University, Xinyang 464000, China;2.Xinyang Agricultural College, Xinyang 464000, China |
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| Abstract: | With the rapid development of low-noise operational amplifiers, the preamplifiers for sensors based on low-noise operational amplifiers are becoming more and more common. Comparaed to the conventional preamplifiers for sensors, the preamplifiers for sensors based on low-noise operational amplifiers are faced with some new design challenges. In order to find out the applicable solutions to the challenges, some techniques for the design of the preamplifiers for sensors based on low-noise operational amplifiers are explored. |
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| Keywords: | sensors preamplifier operational amplifiers low-noise |
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