640×512-25μm多功能红外读出电路设计  

Design of 640×512-25μm Multi-Function Infrared Readout Circuit

作　　者：刘琦[1] 夏晓娟[2] 徐申[1] 马德军 王锦春 Liu Qi;Xia Xiaojuan;Xu Shen;Ma Dejun;Wang Jinchun(Southeast University,Nanjing 210096,China;Nanjing University of Posts and Telecommunications,Nanjing 210023,China;Infrared Detector Technology Key Laboratory of Aeronautical Science and Technology,Luoyang 471009,China)

机构地区：[1]东南大学,南京210096 [2]南京邮电大学,南京210023 [3]红外探测器技术航空科技重点实验室,河南洛阳471009

出　　处：《航空兵器》2019年第2期90-95,共6页Aero Weaponry

基　　金：航空科学基金项目(20162469008)

摘　　要：以上华0.35μm 5 V工艺设计了一款640×512-25μm多功能红外读出电路。该红外读出电路工作在80 K温度条件下适合多种红外探测器,如InSb, HgCdTe和InGaAs。此设计在分析各模块实现的基础上,重点设计了像素单元以及阵列的读出方式。同时,利用相关双采样技术,降低了信道里产生的噪声。最后,对该设计的电路进行单路、双路和四路仿真。其中工作频率为5 MHz,系统默认工作帧频为60 Hz,最大功耗为180 mW,输出摆幅大于3 V,线性度也在99%以上。A 640×512-25 μm multi-function infrared readout circuit is designed with ShangHua 0.35 μm 5 V technology. The ROIC works at 80 K and is suitable for various infrared detectors such as InSb, HgCdTe and InGaAs. On the basis of analyzing the realization of each module, the design of pixel unit and the readout mode of array are emphasized. At the same time, the correlated double sampling technique is used to reduce the noise generated in the channel. Finally, The circuit is simulated under single-way, double-way and four-way output. The working frequency is 5 MHz, the frequency of frame in system is 60 Hz, the maximum power consumption is 180 mW, the output swing is greater than 3 V, and the linearity is more than 99%.

关 键 词：多功能 红外焦平面阵列 像素单元 相关双采样 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程] TN215[电子电信—物理电子学]