A 2D-SPAD Array and Read-Out AFE for Next-Generation Solid-State LiDAR

Tuan Thanh Ta; Hiroshi Kubota; Koichi Kokubun; Toshiki Sugimoto; Masatoshi Hirono; Mitsuhiro Sengoku; Hisaaki Katagiri; Hidenori Okuni; Satoshi Kondo; Shinichi Ohtsuka; Honam Kwon; Keita Sasaki; Yutaka Ota; Kazuhiro Suzuki; Katsuyuki Kimura; Kentaro Yoshioka; Akihide Sai; Nobu Matsumoto

doi:10.1109/VLSICircuits18222.2020.9162831

A 2D-SPAD Array and Read-Out AFE for Next-Generation Solid-State LiDAR

Tuan Thanh Ta, Hiroshi Kubota, Koichi Kokubun, Toshiki Sugimoto, Masatoshi Hirono, Mitsuhiro Sengoku, Hisaaki Katagiri, Hidenori Okuni, Satoshi Kondo, Shinichi Ohtsuka, Honam Kwon, Keita Sasaki, Yutaka Ota, Kazuhiro Suzuki, Katsuyuki Kimura, Kentaro Yoshioka, Akihide Sai, Nobu Matsumoto

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Citations (Scopus)

Abstract

This paper introduces several key RX techniques to realize a 200m-range and low-cost high-pixel-resolution solid-state LiDAR for autonomous self-driving systems. In-Sensor Scanning 2D-SPAD array can remove the mechanical mirror and improve the pixel-resolution by implying short dead time active-quenching SPADs. For ToF calculating SoC, we adopt the world first dual-data converter (DDC) which consolidates the functions of ADC and TDC into a single circuitry, achieving the acquisition of both high-precision time/voltage data from a single input. Such innovations lead us to 200m-range 300×80-pixel solid-state LiDAR RX under 70klux solar radiation.

Original language	English
Title of host publication	2020 IEEE Symposium on VLSI Circuits, VLSI Circuits 2020 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728199429
DOIs	https://doi.org/10.1109/VLSICircuits18222.2020.9162831
Publication status	Published - 2020 Jun
Externally published	Yes
Event	2020 IEEE Symposium on VLSI Circuits, VLSI Circuits 2020 - Honolulu, United States Duration: 2020 Jun 16 → 2020 Jun 19

Publication series

Name	IEEE Symposium on VLSI Circuits, Digest of Technical Papers
Volume	2020-June

Conference

Conference	2020 IEEE Symposium on VLSI Circuits, VLSI Circuits 2020
Country/Territory	United States
City	Honolulu
Period	20/6/16 → 20/6/19

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/VLSICircuits18222.2020.9162831

Cite this

Ta, T. T., Kubota, H., Kokubun, K., Sugimoto, T., Hirono, M., Sengoku, M., Katagiri, H., Okuni, H., Kondo, S., Ohtsuka, S., Kwon, H., Sasaki, K., Ota, Y., Suzuki, K., Kimura, K., Yoshioka, K., Sai, A., & Matsumoto, N. (2020). A 2D-SPAD Array and Read-Out AFE for Next-Generation Solid-State LiDAR. In 2020 IEEE Symposium on VLSI Circuits, VLSI Circuits 2020 - Proceedings [9162831] (IEEE Symposium on VLSI Circuits, Digest of Technical Papers; Vol. 2020-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VLSICircuits18222.2020.9162831

A 2D-SPAD Array and Read-Out AFE for Next-Generation Solid-State LiDAR. / Ta, Tuan Thanh; Kubota, Hiroshi; Kokubun, Koichi et al.

2020 IEEE Symposium on VLSI Circuits, VLSI Circuits 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2020. 9162831 (IEEE Symposium on VLSI Circuits, Digest of Technical Papers; Vol. 2020-June).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ta, TT, Kubota, H, Kokubun, K, Sugimoto, T, Hirono, M, Sengoku, M, Katagiri, H, Okuni, H, Kondo, S, Ohtsuka, S, Kwon, H, Sasaki, K, Ota, Y, Suzuki, K, Kimura, K, Yoshioka, K, Sai, A & Matsumoto, N 2020, A 2D-SPAD Array and Read-Out AFE for Next-Generation Solid-State LiDAR. in 2020 IEEE Symposium on VLSI Circuits, VLSI Circuits 2020 - Proceedings., 9162831, IEEE Symposium on VLSI Circuits, Digest of Technical Papers, vol. 2020-June, Institute of Electrical and Electronics Engineers Inc., 2020 IEEE Symposium on VLSI Circuits, VLSI Circuits 2020, Honolulu, United States, 20/6/16. https://doi.org/10.1109/VLSICircuits18222.2020.9162831

Ta TT, Kubota H, Kokubun K, Sugimoto T, Hirono M, Sengoku M et al. A 2D-SPAD Array and Read-Out AFE for Next-Generation Solid-State LiDAR. In 2020 IEEE Symposium on VLSI Circuits, VLSI Circuits 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2020. 9162831. (IEEE Symposium on VLSI Circuits, Digest of Technical Papers). doi: 10.1109/VLSICircuits18222.2020.9162831

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abstract = "This paper introduces several key RX techniques to realize a 200m-range and low-cost high-pixel-resolution solid-state LiDAR for autonomous self-driving systems. In-Sensor Scanning 2D-SPAD array can remove the mechanical mirror and improve the pixel-resolution by implying short dead time active-quenching SPADs. For ToF calculating SoC, we adopt the world first dual-data converter (DDC) which consolidates the functions of ADC and TDC into a single circuitry, achieving the acquisition of both high-precision time/voltage data from a single input. Such innovations lead us to 200m-range 300×80-pixel solid-state LiDAR RX under 70klux solar radiation.",

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AU - Ta, Tuan Thanh

AU - Kubota, Hiroshi

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AU - Hirono, Masatoshi

AU - Sengoku, Mitsuhiro

AU - Katagiri, Hisaaki

AU - Okuni, Hidenori

AU - Kondo, Satoshi

AU - Ohtsuka, Shinichi

AU - Kwon, Honam

AU - Sasaki, Keita

AU - Ota, Yutaka

AU - Suzuki, Kazuhiro

AU - Kimura, Katsuyuki

AU - Yoshioka, Kentaro

AU - Sai, Akihide

AU - Matsumoto, Nobu

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AB - This paper introduces several key RX techniques to realize a 200m-range and low-cost high-pixel-resolution solid-state LiDAR for autonomous self-driving systems. In-Sensor Scanning 2D-SPAD array can remove the mechanical mirror and improve the pixel-resolution by implying short dead time active-quenching SPADs. For ToF calculating SoC, we adopt the world first dual-data converter (DDC) which consolidates the functions of ADC and TDC into a single circuitry, achieving the acquisition of both high-precision time/voltage data from a single input. Such innovations lead us to 200m-range 300×80-pixel solid-state LiDAR RX under 70klux solar radiation.

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A 2D-SPAD Array and Read-Out AFE for Next-Generation Solid-State LiDAR

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