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ISSCC 2024Session 33 · INTELLIGENT NEURAL INTERFACES AND SENSING SYSTEMSAI / ML

A Miniature Neural Interface Implant with a 95% Charging Efficiency Optical Stimulator and an 81.9dB SNDR ΔΣM-Based Recording Frontend

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📋 论文概要

该论文提出了一种微型神经接口植入体,集成了具有95%充电效率的光学刺激器和基于ΔΣ调制的记录器,解决了微型化植入体在支持高功耗光学刺激时的功率接收限制问题。

💡 主要创新点

核心指标
81.9dB SNDR, 95% charging efficiency
重要性
发表年份
ISSCC 2024

🏷 关键词

神经接口微型植入体光学刺激ΔΣ调制器充电效率

📄 原文摘要

Meta, Santa Clara, CA 3 Michigan State University, East Lansing, MI 1 2 Neural interface implants are revolutionizing neuroscience research, especially in brainmachine interfaces and neuromodulation therapies. Miniaturizing implants can significantly reduce their invasiveness and prevent them from impeding natural behaviors due to size or tethering. However, device miniaturization brings new challenges when the implant needs to support power-intensive applications like optical stimulation. These challenges arise from the power Rx (e.g., a coil) receiving a limited amount of power due to its small size. Hence, the recently demonstrated miniature implants can only support a single neural interface modality, either stimulation or neural recording [1-4]. To bridge this gap, we designed a miniature neural interface implant for simultaneous optical stimulation and neural recording. The ASIC of the implant incorporates a linear

👥 作者与机构

Linran Zhao1, Wei Shi2, Yan Gong3, Xiang Liu3, Wen Li3, Yaoyao Jia1

University of Texas, Austin, TX

分类:AI / ML · 年份:ISSCC 2024