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[1] Wu Jin, Yuan Dejun, Wang Can, et al. Design and implementation of GM-APD array readout circuitfor infrared imaging [J]. Journal of Southeast University (English Edition), 2016, 32 (1): 11-15. [doi:10.3969/j.issn.1003-7985.2016.01.003]

Design and implementation of GM-APD array readout circuitfor infrared imaging()

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

2016 1
Research Field:
Circuit and System
Publishing date:


Design and implementation of GM-APD array readout circuitfor infrared imaging
Wu Jin1 Yuan Dejun1 2 Wang Can1 2 Chen Hao1 2 Zheng Lixia2 Sun Weifeng2
1Wuxi Branch School, Southeast University, Wuxi 214135, China
2School of Integrated Circuit, Southeast University, Nanjing 210096, China
infrared 3D(three-dimensional)imaging readout integrated circuit(ROIC) Geiger mode avalanche photodiode active quenching circuit(AQC) time-to-digital converter(TDC)
Based on an avalanche photodiode(APD)detecting array working in Geiger mode(GM-APD), a high-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).


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Biography: Wu Jin(1965—), male, doctor, professor, 13912987652@163.com.
Foundation items: The Natural Science Foundation of Jiangsu Province(No.BK2012559), Qing Lan Project of Jiangsu Province.
Citation: Wu Jin, Yuan Dejun, Wang Can, et al. Design and implementation of GM-APD array readout circuit for infrared imaging[J].Journal of Southeast University(English Edition), 2016, 32(1):11-15.DOI:10.3969/j.issn.1003-7985.2016.01.003.
Last Update: 2016-03-20