Time of Flight Imaging and Sensing for Mobile Applications

Neale Dutton, Tarek Al abbas, Francescopaolo Mattioli Della Rocca, Neil Finlayson, Bruce Rae, Robert Henderson

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Optical sensors, based on the time correlated single photon counting (TCSPC) technique, are found in a range of applications from medical to consumer. This chapter provides an overview of the challenges in TCSPC sensor design for mobile applications. We describe the design of a proof-of-concept TCSPC optical sensor with 10 GS/s conversion rate folded flash time to digital converter (TDC) and on-chip histogram generation, designed to minimize time-domain distortion and have high power efficiency. The proof of concept IC is fabricated in STMicroelectronics 130 nm SPAD foundry process. The system consumes 178.1 pJ per photon at 899 M photon/s, and the TDC achieves state of the art 0.48 pJ/S energy efficiency.
Original languageEnglish
Title of host publicationLow-Power Analog Techniques, Sensors for Mobile Devices, and Energy Efficient Amplifiers
PublisherSpringer
Pages221-249
DOIs
Publication statusPublished - Jan 2019

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