Dynamic-Range-Enhancement Techniques for Artifact-Tolerant Biopotential-Acquisition ICs
Dynamic-Range-Enhancement Techniques for Artifact-Tolerant Biopotential-Acquisition ICs
复制标题
耐伪影生物电势采集 IC 的动态范围增强技术
DOI：
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Minkyu Je
中科院分区：
文献类型：
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作者：
Yoontae Jung;Soon;Taeju Lee;K. Jeong;S. Ha;Minkyu Je
本文简要介绍了用于人工容错生物电势采集集成电路的动态范围(DR)增强技术的原理和设计。为了记录小的输入信号而不受运动或刺激引起的大伪影的干扰，用于可穿戴设备和双向神经接口的生物势能采集IC除了低噪声和高功率效率外，还应该具有宽DR。本文讨论了基于三种拓扑结构的DR增强技术的主要特点：(1)采用模数转换器(ADC)的无饱和仪表放大器；(2)增强信噪比(SNDR)的ADC；(3)中等线性度的DR增强ADC。
This brief reviews the principle and design of dynamic range (DR) enhancement techniques for artifact-tolerant biopotential-acquisition ICs. In order to record small input signals without being disturbed by large artifacts, which may arise from motion or stimulation, biopotential-acquisition ICs for wearable devices and bidirectional neural interfaces should have wide DR in addition to low noise and high power efficiency. This review discusses key features of DR enhancement techniques based on three topologies: (1) saturation-free instrumentation amplifier with analog-to-digital converter (ADC), (2) signal-to-noise-and-distortion ratio (SNDR) enhanced ADC, and (3) DR-enhanced ADC with moderate linearity, which are used in state-of-the-art artifact-tolerant biopotential-acquisition ICs.