An Automotive LiDAR SoC for 240 × 192-Pixel 225-m-Range Imaging With a 40-Channel 0.0036-mm<sup>2</sup> Voltage/Time Dual-Data-Converter-Based AFE

Kondo, Satoshi; Kubota, Hiroshi; Katagiri, Hisaaki; Ota, Yutaka; Hirono, Masatoshi; Ta, Tuan Thanh; Okuni, Hidenori; Ohtsuka, Shinichi; Ojima, Yoshinari; Sugimoto, Tsuneaki; Ishii, Hirotomo; Yoshioka, Kentaro; Kimura, Kozo; Sai, Akihide; Matsumoto, Nobu

doi:10.1109/jssc.2020.3020812

Cited by 13 publications

(2 citation statements)

References 14 publications

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“…There are also several types of LiDAR scanning methods: rotating mirror [8], [26], polygon mirror [13], [16], [18], and MEMS mirror [20], [21], [23]. The rotating mirror is extremely bulky but generally has good optical properties (less laser attenuation) and can obtain 360-degree data.…”

Section: Basic Lidar Architecturesmentioning

confidence: 99%

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A Tutorial and Review of Automobile Direct ToF LiDAR SoCs: Evolution of Next-Generation LiDARs

Yoshioka

2022

IEICE Trans. Electron.

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LiDAR is a distance sensor that plays a key role in the realization of advanced driver assistance systems (ADAS). In this paper, we present a tutorial and review of automotive direct time of flight (dToF) LiDAR from the aspect of circuit systems. We discuss the breakthrough in ADAS LiDARs through comparison with the first-generation LiDAR systems, which were conventionally high-cost and had an immature performance. We define current high-performance and low-cost LiDARs as nextgeneration LiDAR systems, which have significantly improved the cost and performance by integrating the photodetector, the readout circuit, and the signal processing unit into a single SoC. This paper targets reader who is new to ADAS LiDARs and will cover the basic principles of LiDAR, also comparing with range methods other than dToF. In addition, we discuss the development of this area through the latest research examples such as the 2-chip approach, 2D SPAD array, and 3D integrated LiDARs.

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Section: Basic Lidar Architecturesmentioning

confidence: 99%

“…On the other hand, as the number of pixels increases, the interchip connectivity becomes complex and such approaches lose scalability. Moreover, due to the use of SiPMs, it was necessary to use an ADC with low area efficiency to achieve 200 m range performance [16], [18].…”

Section: D Integration Approachmentioning

confidence: 99%

A Tutorial and Review of Automobile Direct ToF LiDAR SoCs: Evolution of Next-Generation LiDARs

Yoshioka

2022

IEICE Trans. Electron.

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An analytical model from physical parameters to minimum ranging time for photon-counting LiDARs

Chen,

Liu,

Lin

2025

Optics & Laser Technology

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A 103.8-dB DR 25ps-to-35ns Resolution Time-to-Digital Converter with Dynamic Ring Oscillator for LiDAR Applications

Kim

Lee

Chae

2022

2022 IEEE Asian Solid-State Circuits Conference (A-Sscc)

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An Automotive LiDAR SoC for 240 × 192-Pixel 225-m-Range Imaging With a 40-Channel 0.0036-mm² Voltage/Time Dual-Data-Converter-Based AFE

Cited by 13 publications

References 14 publications

A Tutorial and Review of Automobile Direct ToF LiDAR SoCs: Evolution of Next-Generation LiDARs

A Tutorial and Review of Automobile Direct ToF LiDAR SoCs: Evolution of Next-Generation LiDARs

An analytical model from physical parameters to minimum ranging time for photon-counting LiDARs

A 103.8-dB DR 25ps-to-35ns Resolution Time-to-Digital Converter with Dynamic Ring Oscillator for LiDAR Applications

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An Automotive LiDAR SoC for 240 × 192-Pixel 225-m-Range Imaging With a 40-Channel 0.0036-mm2 Voltage/Time Dual-Data-Converter-Based AFE

Cited by 13 publications

References 14 publications

A Tutorial and Review of Automobile Direct ToF LiDAR SoCs: Evolution of Next-Generation LiDARs

A Tutorial and Review of Automobile Direct ToF LiDAR SoCs: Evolution of Next-Generation LiDARs

An analytical model from physical parameters to minimum ranging time for photon-counting LiDARs

A 103.8-dB DR 25ps-to-35ns Resolution Time-to-Digital Converter with Dynamic Ring Oscillator for LiDAR Applications

Contact Info

Product

Resources

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An Automotive LiDAR SoC for 240 × 192-Pixel 225-m-Range Imaging With a 40-Channel 0.0036-mm² Voltage/Time Dual-Data-Converter-Based AFE