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CAMEL: An Ultra-Low-Power VGA CMOS Imager based on a Time-Based DPS Array

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Haine, Thomas [UCL] Stas, François [UCL] de Streel, Guerric [UCL] Gimeno Gasca, Cecilia [UCL] Flandre, Denis [UCL] Bol, David [UCL]

Adding vision capabilities to wireless sensors nodes (WSN) for the Internet-of-Things requires imagers with high resolution and ultra-low power. Based on previous work [1], a time-based imager adapts the three key innovations from [3] and introduces new features: extended resolution, migration to a more mature CMOS technology and integration of a DC/DC converter on chip to power the imager through a single supply. The concepts are demonstrated by the design and fabrication of a VGA CMOS image sensor in 0.18μm CMOS. When operated at 0.65 V, it features a fixed pattern noise (FPN) of 0.078%, a dynamic range (DR) of 61.6 dB and a fill factor (FF) of 32.4% with a 5.8 μm pixel pitch, while consuming only 177.3 pJ/(frame.pixel) and 470 μW at 8.5 fps.

Document type Communication à un colloque (Conference Paper) – Présentation orale avec comité de sélection
Access type Accès interdit
Publication date 2016
Language Anglais
Conference "10th International Conference on Distributed Smart Camera (ICDSC '16)", Paris (France) (du 12/09/2016 au 15/09/2016)
Peer reviewed yes
Publication status Publié
Affiliation UCL - SST/ICTM/ELEN - Pôle en ingénierie électrique
Keywords System-on-chip ; time-based CMOS imager ; Ultra-low power ; Ultra-low voltage ; VGA
Links
  1. Hanson Scott, Foo ZhiYoong, Blaauw David, Sylvester Dennis, A 0.5 V Sub-Microwatt CMOS Image Sensor With Pulse-Width Modulation Read-Out, 10.1109/jssc.2010.2040231
  2. El Gamal A., Eltoukhy H., CMOS image sensors, 10.1109/mcd.2005.1438751
  3. N. Couniot, G. de Streel, F. Botman, A. K. Lusala, D. Flandre, and D. Bol. "a 65 nm 0.5v dps cmos image sensor with 17 pj/frame.pixel and 42 db dynamic range for ultra-low-power socs". In IEEE Journal of Solid-State Circuits, 2015.
  4. J. Choi, S. Park, J. Cho, and E. Yoon. "a 3.4-μw object-adaptive cmos image sensor with embedded feature extraction algorithm for motion-triggered object-of-interest imaging". In IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2013.
  5. D. Bol, G. de Streel, F. Botman, A. K. Lusala, and N. Couniot. A 65-nm 0.5-v 17-pj/frame.pixel dps cmos image sensor for ultralow-power socs achieving 40-db dynamic range. In IEEE International Symposium on Very Large Scale Integration (VLSI), 2014.
Bibliographic reference Haine, Thomas ; Stas, François ; de Streel, Guerric ; Gimeno Gasca, Cecilia ; Flandre, Denis ; et. al. CAMEL: An Ultra-Low-Power VGA CMOS Imager based on a Time-Based DPS Array.10th International Conference on Distributed Smart Camera (ICDSC '16) (Paris (France), du 12/09/2016 au 15/09/2016).
Permanent URL http://hdl.handle.net/2078.1/181106