采用APD单光子阵列读出集成电路的红外测距技术  

Infrared ranging technology by using single photon APD array readout integrated circuit

作　　者：吴金[1] 俞向荣[2] 史书芳 郑丽霞[1] 孙伟锋[2] 

机构地区：[1]东南大学无锡分校,江苏无锡214135 [2]东南大学微电子学院,江苏南京210096

出　　处：《红外与激光工程》2017年第6期69-74,共6页Infrared and Laser Engineering

基　　金：江苏省自然科学基金(BK2012559)

摘　　要：红外单光子探测因其超高的检测灵敏度和信噪比,有效提升了弱光检测系统的性能水平。基于TSMC 0.35μm CMOS工艺,提出了一种阵列型数字式红外读出电路及其应用系统的设计方法。采用由OSC多相时钟构成的低段全局共享TDC和高段像素独享TDC的两段式阵列结构,在170 MHz时钟频率下,实测获得了小于1 ns的时间分辨率和3μs的量程,并在1 k Hz的帧率下采用串行模式输出数据,经相关数据处理,最终实现测距轮廓成像的功能。A infrared single-photon detecting system has greatly improved the performance of the weak light detection system due to its ultra high sensitivity and SNR. Based on TSMC 0.35 μm CMOS process, a design method for digital mode infrared ROIC and its application system were proposed. The system included high-segment pixel TDC and low-segment global shared TDC controlled by OSC multiphase clocks. The implemented circuit was operated at frame rates of 1 kHz with data output in a series mode, also it has a time resolution of less than lns along with a 3 μs measurement range under 170 MHz reference frequency condition, which can finally satisfy the application of ranging and imaging after relevant data processing.

关 键 词：读出集成电路 接口 时间数字转换器 光子 雪崩光电二极管 

分 类 号：TP11[自动化与计算机技术—控制理论与控制工程] TP13[自动化与计算机技术—控制科学与工程]