一种1.6uW Gm-C连续时间σ - δ调制器，采用线性度增加技术，用于生物信号采集

2014 IEEE International Symposium on Bioelectronics and Bioinformatics (IEEE ISBB 2014) Pub Date : 2014-04-11 DOI:10.1109/ISBB.2014.6820920

Chih-Pei Hsueh, Ming-Chun Liang, Jia-Hua Hong, Shuenn-Yuh Lee

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引用次数: 2

摘要

本文提出了一种低通σ δ调制器(LPSDM)，可用于脑电图(EEG)或心电图(ECG)信号采集系统。在连续时间Gm-C架构下实现了LPSDM，并介绍了系统的设计流程。LPSDM的功耗为1.614 w。在心电带宽下进行布局后仿真，可实现57.9 dB的信噪比和谐波失真比。

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A 1.6uW Gm-C coninuous-time sigma-delta modulator with increasing linearity technology for bio-signal acquisitions

This paper present a low-pass sigma delta modulator (LPSDM), which can be used for electroencephalogram (EEG) or electrocardiogram (ECG) signal acquisition systems. The LPSDM is implemented in continuous time Gm-C architecture and the systematic design flow is introduced. The power consumption of LPSDM is 1.614uW. According to the post-layout simulation under the bandwidth of ECG, a signal-to-noise and harmonic distortion ratio (SNDR) of 57.9 dB can be achieved.

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2014 IEEE International Symposium on Bioelectronics and Bioinformatics (IEEE ISBB 2014)

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