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https://doi.org/10.1109/VLSITechnologyandCir46769.2022.9830147
Title: | Imager with Dynamic LSB Adaptation and Ratiometric Readout for Low-Bit Depth 5-µW Peak Power in Purely-Harvested Systems | Authors: | Karim Ali Abdeltawwab Ahmed Lin Longyang Salamani, Praveen Massimo Bruno Alioto |
Issue Date: | 14-Jun-2022 | Publisher: | IEEE VLSI Symposium | Citation: | Karim Ali Abdeltawwab Ahmed, Lin Longyang, Salamani, Praveen, Massimo Bruno Alioto (2022-06-14). Imager with Dynamic LSB Adaptation and Ratiometric Readout for Low-Bit Depth 5-µW Peak Power in Purely-Harvested Systems. ScholarBank@NUS Repository. https://doi.org/10.1109/VLSITechnologyandCir46769.2022.9830147 | Abstract: | An imager with µW peak power is introduced for purely-harvested operation. The LSB is dynamically adapted to the light intensity of the scene for aggressive bit depth down-scaling, avoiding traditional dynamic range over-margining across practical light intensities under fixed LSB. Ratiometric readout of pixel current cancels threshold voltage mismatch. A 256×256-pixel 180-nm imager shows 5-W power at 1 fps and 4 bits, while keeping ImageNet classification accuracy drop to percentage points under 75-dB ambient light range, across original and brightness-adjusted images. | URI: | https://scholarbank.nus.edu.sg/handle/10635/237222 | DOI: | 10.1109/VLSITechnologyandCir46769.2022.9830147 |
Appears in Collections: | Elements Staff Publications |
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DLSB_imager_F.pdf | 1.16 MB | Adobe PDF | CLOSED | None |
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