A CMOS SPAD Imager with Collision Detection and 128 Dynamically Reallocating TDCs for Single-Photon Counting and 3D Time-of-Flight Imaging

A CMOS SPAD Imager with Collision Detection and 128 Dynamically Reallocating TDCs for Single-Photon Counting and 3D Time-of-Flight Imaging

Per-pixel time-to-digital converter (TDC) architectures have been exploited by single-photon avalanche diode (SPAD) sensors to achieve high photon throughput, but at the expense of fill factor, pixel pitch and readout efficiency. In contrast, TDC sharing architecture usually features high fill facto...

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Bibliographic Details
Main Authors: Chao Zhang, Scott Lindner, Ivan Michel Antolovic, Martin Wolf, Edoardo Charbon
Format: Article
Language:English
Published: MDPI AG 2018-11-01
Series:Sensors
Subjects:
single-photon avalanche diode
SPAD
time-of-flight
dynamic reallocation
time-to-digital converter
collision detection bus
image sensor
light detection and ranging
LiDAR
Online Access:https://www.mdpi.com/1424-8220/18/11/4016

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