A Wireless 8-Channel ECG Biopotential Acquisition System for Dry Electrodes

被引：0

作者：

Pu, Xiaofei ^{[1
]}

Wan, Lei ^{[1
]}

Sheng, Yun ^{[2
]}

Chiang, Patrick ^{[1
,3
]}

Qin, Yajie ^{[1
]}

Hong, Zhiliang ^{[1
]}

机构：

[1] Fudan Univ, State Key Lab ASIC & Syst, Shanghai 201203, Peoples R China

[2] Nanosense Corp, Shanghai 201203, Peoples R China

[3] Oregon State Univ, Corvallis, OR 97331 USA

来源：

PROCEEDINGS OF THE 2012 IEEE INTERNATIONAL SYMPOSIUM ON RADIO-FREQUENCY INTEGRATION TECHNOLOGY (RFIT) | 2012年

关键词：

ECG dry metal electrode; wireless; chopper modulation; instrumentation amplifier; CIRCUIT;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A wireless 8-channel biopotential acquisition system for capturing electrocardiogram (ECG) using dry electrodes is presented. The ECG system consists of copper electrodes, a micropowered 8-channel custom ASIC, and an off-the-shelf microprocessor and bluetooth radio. Each analog channel of the custom ECG front-end is composed of a chopper-modulated instrumentation amplifier (CMIA) with chopping spike filter (CSF), a programmable gain amplifier (PGA), and a output buffer. Implemented in standard a 0.35 gm CMOS technology, the ECG front-end consumes 101 mu A from a 2.7 V supply, occupying 5 mm(2) of chip area. Measurement results show an input impedance of 1 G Omega, an input-referred noise of 0.97 mu Vrms (0.5 similar to 100 Hz), and a CM of 114 dB. Finally, a complete wireless 8-channel ECG monitoring system incorporating this analog front-end is demonstrated, showing successful recordings of a capture ECG waveform using a smart phone.

引用

页码：140 / 142

页数：3

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