Active quenching circuit for a InGaAs single-photon avalanche diode

• 作 者: 郑丽霞 吴金 时龙兴 奚水清 刘斯扬 孙伟锋
• 机 构: Wuxi Branch, Southeast University,National ASIC System Engineering Research Center, Southeast Univer
• 出 处: Journal of Semiconductors
• 发表日期: 2014年04期
• 关键词: quenching SPAD readout gated SPICE packed functionality transistor breakdown pho

We present a novel gated operation active quenching circuit (AQC). In order to simulate the quenching circuit a complete SPICE model of a InGaAs SPAD is set up according to the I –V characteristic measurement results of the detector. The circuit integrated with a ROIC (readout integrated circuit) is fabricated in an CSMC 0.5m CMOS process and then hybrid packed with the detector. Chip measurement results show that the functionality of the circuit is correct and the performance is suitable for practical system applications.

We present a novel gated operation active quenching circuit (AQC). In order to simulate the quenching circuit a complete SPICE model of a InGaAs SPAD is set up according to the I -V characteristic measurement results of the detector. The circuit integrated with a ROIC Chip readout integrated circuit is fabricated in an CSMC 0.5m CMOS process and then hybrid packed with the detector. Chip measurement results show that the functionality of the circuit is correct and the performance is suitable for practical system applications.