一种用于非制冷红外焦平面阵列的低噪声高均匀性读出电路（英文）  

A low noise and high uniformity readout integrated circuit for IFPA applications

作　　者：周同 何勇[1] 赵健 姜波 苏岩[1] ZHOU Tong1, HE Yong1, ZHAO Jian2, JIANG Bo1, SU Yan1(1. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; 2. Department of Electronic Engineering, Tsinghua University, Beijing 100084, Chin)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]清华大学电子工程系,北京100084

出　　处：《红外与毫米波学报》2018年第3期261-268,共8页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金(A2620110012);江苏省自然科学基金(BK20170853,BK20170850)~~

摘　　要：提出了一种高均匀性低噪声的读出电路,该电路通过抑制非制冷红外焦平面阵列固定模式噪声,从而可实现高质量的红外图像.该电路前端采用了行共享的增益可控NMOS管抑制像元固定模式噪声,同时采用了新型的相关双采样电路抑制列固定模式噪声.在仿真基础上,采用了AMS 0.35μm CMOS工艺完成了16×16像元芯片的制备.对芯片的大量测试结果表明提出的读出电路可以有效地降低非制冷红外焦平面阵列的固定模式噪声,同时具有高均匀性的特点,适用于高性能非制冷红外探测器.This paper proposed a readout integrated circuit（ ROIC） with high uniformity and low-noise,by mitigating the fixed patter noise（ FPN） of Infrared focal plane arrays（ IFPA） to acquire high-quality infrared images.The row shared gain-controlling NMOS transistors are adopted in front-end circuit to reduce the pixel FPN. Furthermore,a novel correlated double sampling（ CDS） structure is proposed to reduce the column FPN. Based on the simulation results,a 16 × 16 experimental chip has been manufactured adopting AMS 0. 35 μm CMOS process.Extensive experiments have been implemented to verify the function and performance of the proposed readout circuit.The test results demonstrate the ROIC with the inherent advantages of low FPN and high uniformity,which makes it suitable for the application of high performance IFPA.

关 键 词：读出电路 固定模式噪声抑制 相关双采样 高均匀性 

分 类 号：TN432[电子电信—微电子学与固体电子学]