东南大学学报（英文版）2016，Vol.32Issue(1)：11-15,5.DOI:10.3969/j.issn.1003-7985.2016.01.003
GM－APD阵列型红外传感读出电路设计与实现
Design and implementation of GM-APD array readout circuit for infrared imaging
摘要
Abstract
Based on an avalanche photodiode APD detecting array working in Geiger mode GM-APD performance infrared sensor readout integrated circuit ROIC used for infrared 3D three-dimensional imaging is proposed. The system mainly consists of three functional modules including active quenching circuit AQC time-to-digital converter TDC circuit and other timing controller circuit. Each AQC and TDC circuit together constitutes the pixel circuit.Under the cooperation with other modules the current signal generated by the GM-APD sensor is detected by the AQC and the photon time-of-flight TOF is measured and converted to a digital signal output to achieve a better noise suppression and a higher detection sensitivity by the TDC.The ROIC circuit is fabricated by the CSMC 0.5 μm standard CMOS technology.The array size is 8 ×8 and the center distance of two adjacent cells is 100 μm.The measurement results of the chip show that the performance of the circuit is good and the chip can achieve 1 ns time resolution with a 250 MHz reference clock and the circuit can be used in the array structure of the infrared detection system or focal plane array FPA .关键词
红外3D成像/读出电路/盖革-雪崩光电二极管/主动淬火电路/时间-数字转换电路Key words
infrared 3D/three-dimensional imaging readout integrated circuit/ROIC Geiger mode avalanche photodiode/active quenching circuit AQC/time-to-digital converter TDC分类
信息技术与安全科学引用本文复制引用
吴金,袁德军,王灿,陈浩,郑丽霞,孙伟锋..GM－APD阵列型红外传感读出电路设计与实现[J].东南大学学报（英文版）,2016,32(1):11-15,5.基金项目
The Natural Science Foundation of Jiangsu Province No．BK2012559 Qing Lan Project of Jiangsu Province． （）
