| 热释电BST薄膜红外探测器噪声分析及前置放大电路设计 |
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| 引用本文： | 谯黎,张万里. 热释电BST薄膜红外探测器噪声分析及前置放大电路设计[J]. 电讯技术, 2007, 47(2): 154-157 |
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| 作者姓名： | 谯黎 张万里 |
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| 作者单位： | 电子科技大学,电子薄膜与集成器件国家重点实验室,成都,610054;电子科技大学,电子薄膜与集成器件国家重点实验室,成都,610054 |
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| 摘 要： | 针对热释电红外探测中微信号放大时的低信噪比问题,在分析热释电红外探测器及前置放大电路噪声来源的基础上,提出了一种热释电红外探测前置放大电路.电路仿真表明,文中所设计的前置放大电路具有低频特性好、高信噪比、高增益的特点,能有效放大微弱信号.
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| 关 键 词： | 热释电探测器 前置放大器 噪声分析 电路设计 仿真 |
| 文章编号： | 1001-893X（2007）02-0154-04 |
| 收稿时间： | 2006-09-18 |
| 修稿时间： | 2006-09-182006-12-26 |
Noise Analysis of the BST Film Infrared Detector and Pre-amplifier Circuit Design |
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| QIAO Li,ZHANG Wan-li. Noise Analysis of the BST Film Infrared Detector and Pre-amplifier Circuit Design[J]. Telecommunication Engineering, 2007, 47(2): 154-157 |
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| Authors: | QIAO Li ZHANG Wan-li |
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| Affiliation: | State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | According to the low SNR in the pyroelectric IR detector and based on the analysis of the generation source of circuit noise, a pre - amplifier circuit is presented in this paper. The results of the circuit simulation show that the weak IR signal can be amplified with good low frequency characteristics, high SNR and high gain. |
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| Keywords: | pyroelectric detector pre - amplifier noise analysis circuit design simulation |
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