A 128×128 SPAD Flash LiDAR with a 320µm² TDC in 130nm SiGe Technology for Operation in 120klx Background Illumination

2026 Preprint Open access

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Authors: 刘畅 Chang Liu, Edoardo Charbon
DOI: 10.36227/techrxiv.177155916.64695693/v1
Cited by: 1

Abstract

This paper presents a 128 × 128 SPAD sensor for Flash LiDAR applications, integrating an array of 320µm²-TDCs in the sensor fabric. The sensor was fabricated in a 130nm SiGe BiCMOS technology and achieves a range of 57m with a distance precision of 6.4cm (sigma) at that range, whereas in outdoor operating conditions, the sensor can suppress background illumination in excess of 120klx.

Fields of Study & Subjects

Advanced Optical Sensing Technologies CCD and CMOS Imaging Sensors Advanced Fiber Optic Sensors

Publication details

Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Publication date
20 February 2026
Document type
Preprint