基于SPRITE探测器的低噪声前置放大器的设计

The design of low-noise preamplifier based on the SPRITE detector

为拓展热成像技术的应用 ,使其可以应用到除军事领域外的其它商业范围 ,本文就其中的微弱信号处理技术进行了研究 .采用国内市场可购得的AD797作核心芯片 ,对SPRITE探测器输出的微弱信号进行了放大、缓冲 。

The weak signal processing in the technology of thermal imaging is studied in this paper to expand the application of the technology of thermal imaging which is to be applied to commercial areas besides the military purposes. The weak signal output of the SPRITE detector is amplified and buffered by the avilable AD797 as the core IC. Furthermore, the related parameters and several problems, which particular attentions should be paid to,in the design is given.