| 基于红外探测器的前置放大器噪声特性分析 |
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| 引用本文： | 黄静.基于红外探测器的前置放大器噪声特性分析[J].现代电子技术,2006,29(23):82-83,86. |
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| 作者姓名： | 黄静 |
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| 作者单位： | 南通大学,电子信息学院,江苏,南通,226007;华东师范大学,上海,200062 |
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| 摘 要： | 红外探测器的快速发展引起了国内外的广泛关注,但其读出电路的发展却相对滞后。如何降低电路噪声是读出电路研究热点之一,本文就红外探测器的电压型和跨导型两种基本结构前置放大器,建立了噪声等价模型,分析比较了其信噪比。并根据具体探测器对前置放大器进行了优化设计,以广泛适用于各种类型的红外探测器。
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| 关 键 词： | 红外探测器 前置放大器 低噪声 噪声等价模型 信噪比 |
| 文章编号： | 1004-373X（2006）23-082-02 |
| 收稿时间： | 2006-09-07 |
| 修稿时间： | 2006-09-07 |
Noise Analysis of Pre - amplifiers for Infrared Photo - detectors |
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| HUANG Jing.Noise Analysis of Pre - amplifiers for Infrared Photo - detectors[J].Modern Electronic Technique,2006,29(23):82-83,86. |
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| Authors: | HUANG Jing |
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| Affiliation: | 1, Institute of Electronics and Information , Nantong University, Nantong, 226007, China ; 2. East China Normal University, Shanghai, 2000620 China |
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| Abstract: | It is greatly concerned of explosive growth of infrared photo-detector.Readout circuit is one of the core parts of detector.It is paid much attention to decreasing the noise of readout circuit for infrared photo-detector.An analysis of noise models for two basic pre-amplifier structures:voltage and transimpedance are carried out.Special attention has been paid to ensure maximum signal-to-noise ratio in a wide range of a detectors resistance.The optimized preamplifiers are individually optimized to work with infrared photo-detectors.They can be used with many types of detectors available commercially. |
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| Keywords: | infrared photo-detector pre-amplifier low noise equivalent scheme of noise signal-to-noise ratio |
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