| 边积分边读出低噪声红外焦平面读出电路研究 |
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| 引用本文： | 黄张成,黄松垒,张伟,陈郁,方家熊.边积分边读出低噪声红外焦平面读出电路研究[J].红外与毫米波学报,2011,30(4):297-300. |
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| 作者姓名： | 黄张成 黄松垒 张伟 陈郁 方家熊 |
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| 作者单位： | 1. 中国科学院上海技术物理研究所传感技术联合国家重点实验室,上海200083;中国科学院研究生院,北京100039
2. 中国科学院上海技术物理研究所传感技术联合国家重点实验室,上海,200083 |
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| 摘 要： | 设计了一款低噪声InGaAs焦平面读出电路.提出一种新型相关双采样电路结构,可在边积分边读出模式下有效抑制积分电容(0.15 pF)的KTC噪声.电路经0.5 μn5 V Nwell CMOS工艺流片,测试结果符合设计目标,在高帧频边积分边读出模式下工作状态良好,电路噪声约1.7×10-4V,动态范围大于80 dB.
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| 关 键 词： | 红外焦平面 读出电路 边积分边读出 相关双采样 |
| 收稿时间： | 8/19/2010 9:40:01 AM |
| 修稿时间： | 4/15/2011 4:34:49 PM |
Low noise readout circuit for infrared focal plane array: in integration while read |
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| HUANG Zhangc-Cheng,HUANG Song-Lei,ZHANG Wei,CHEN Yu and FANG Jia-Xiong.Low noise readout circuit for infrared focal plane array: in integration while read[J].Journal of Infrared and Millimeter Waves,2011,30(4):297-300. |
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| Authors: | HUANG Zhangc-Cheng HUANG Song-Lei ZHANG Wei CHEN Yu and FANG Jia-Xiong |
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| Affiliation: | HUANG Zhang-Cheng1,2,HUANG Song-Lei1,ZHANG Wei1,CHEN Yu1,FANG Jia-Xiong1(1.State Key Laboratory of Transducer Technology,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China,2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | InGaAs shortwave infrared focal plane array (FPA) has important application in space remote sensing. In this paper, a design is presented for a low-noise InGaAs FPA readout integrated circuit (ROIC). In order to promote the signal-to-noise ratio, a new correlated double sampling (CDS) circuit is presented for eliminating KTC noise of integration capacitor (0.15 pF) in mode of integration while read. The circuit has been fabricated with 0.5-m 5V N-well CMOS process. Test results show that ROIC noise is 1.710-4 V and dynamic range is above 80 dB, working well after interfaced with InGaAs detectors. |
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| Keywords: | infrared focal plane array(FPA) readout integrated circuit(ROIC) integration while read correlated double sampling |
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