Power-efficient low-latency large-format FPA development using event-driven readout

Atul B. Joshi

doi:10.1117/12.2678365

15 June 2023 Power-efficient low-latency large-format FPA development using event-driven readout

Atul B. Joshi

Proceedings Volume 12534, Infrared Technology and Applications XLIX; 125341Q (2023) https://doi.org/10.1117/12.2678365
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

Contemporary large-format EO/IR camera systems have several shortcomings as related to 1) their compromise on power or frame rate , 2) their high latency to read out a pixel which impacts their use in tracking applications, and 3) excessive data produced that overload embedded processing. These issues are even more pronounced in space applications which have limited cooling budget, have limited bandwidth, and have limited on-board processing capability. This paper presents a novel low SWAP-C event based ROIC architecture developed to alleviate these issues in large format FPAs. A prototype ROIC developed demonstrates the capability in a 512x512 format with 30um pixel pitch. The ROIC is designed to be stitched up to 4K x 4K array sizes with a 15um pitch. The event based ROIC allows regular frame based imaging, as well as event readout with latencies as low as 20us, while simultaneously reducing system power in hyper-temporal applications by an order of magnitude.

Conference Presentation

Citation Download Citation

Atul B. Joshi "Power-efficient low-latency large-format FPA development using event-driven readout", Proc. SPIE 12534, Infrared Technology and Applications XLIX, 125341Q (15 June 2023); https://doi.org/10.1117/12.2678365

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