单光子探测器阵列级读出电路与接口显示系统  

Array-level readout circuit and interface display system of single photon detector

作　　者：向凯跃 孙佳男 刘旺 朱思慧 徐跃[1] XIANG Kaiyue;SUN Jianan;LIU Wang;ZHU Sihui;XU Yue(College of Electronic and Optical Engineering&College of Microelectronics,Nanjing University of Posts and Telecommunications,Nanjing 210023,China)

机构地区：[1]南京邮电大学电子与光学工程学院微电子学院,江苏南京210023

出　　处：《传感器与微系统》2020年第9期80-83,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金面上资助项目(61571235);江苏省大学生创新创业训练计划资助项目(201810293072X)。

摘　　要：采用0.18μm CMOS工艺设计了一种用于单光子探测器的紧凑型阵列级读出电路,利用两次相关双采样(CDS)技术,有效消除了像素单元与读出电路中的固定模式噪声。仿真结果表明:在3.3 V电源下阵列级读出电路的线性输出范围达到2.8 V,读出时间为80 ns,具有面积小、成本低、读出速度快等优势。此外还设计并实现了一种基于ARM的模拟图像采集与显示系统。测试结果表明:该系统能够优质还原输入的模拟图像信号。Based on 0.18μm CMOS technology,a compact array-level readout circuit is designed for single photon detector.By means of quadratic correlation double sampling(CDS)technique,the fixed pattern noise in pixel cells and readout circuit is effectively eliminated.The simulation results shows that the linear output voltage range of the readout circuit is up to 2.8 V under the supply voltage of 3.3 V,and the signal readout time is 80 ns,showing advantages of small occupying area,low production cost and fast readout speed.In addition,an ARMbased analog image acquisition and display system is designed and realized.The test results show that the display system can successfully restore the input analog image signals.

关 键 词：单光子探测器 阵列级读出电路 相关双采样 图像采集与显示系统 

分 类 号：TN312.7[电子电信—物理电子学]