A Light Tolerant Neural Recording IC for Near-Infrared-Powered Free Floating Motes.
A Light Tolerant Neural Recording IC for Near-Infrared-Powered Free Floating Motes.
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用于近红外供电的自由浮动微粒的耐光神经记录IC。
DOI：
10.23919/vlsicircuits52068.2021.9492459
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发表时间：
2021-06
期刊：
影响因子：
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通讯作者：
Jang T
中科院分区：
文献类型：
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作者：
Lim J;Lee J;Moon E;Barrow M;Atzeni G;Letner J;Costello J;Nason SR;Patel PR;Patil PG;Kim HS;Chestek CA;Phillips J;Blaauw D;Sylvester D;Jang T
近红外（NIR）供电的神经记录IC的一个关键挑战是在暴露于光时存在结型二极管的寄生短路电流的情况下保持稳健的操作。当有意电流保持较小以降低功耗时尤其如此。我们提出了一种神经记录IC，其耐受高达300 μW/mm 2的曝光量（高于组织极限），在38°C下消耗0.57 μW，使其在独立微尘中功耗最低，同时结合了片上特征提取和单独增益控制。
A key challenge for near-infrared (NIR) powered neural recording ICs is to maintain robust operation in the presence of parasitic short circuit current from junction diodes when exposed to light. This is especially so when intentional currents are kept small to reduce power consumption. We present a neural recording IC that is tolerant up to 300 μW/mm2 light exposure (above tissue limit) and consumes 0.57 μW at 38°C, making it lowest power among standalone motes while incorporating on-chip feature extraction and individual gain control.