Analog Front-End for EMG Acquisition System

被引：0

作者：

Chung, Bum-Sik ^{[1
]}

Kim, Hyeong-Kyu ^{[1
]}

Cho, Kang-Il ^{[1
]}

Kim, Ho-Jin ^{[1
]}

Ahn, Gil-Cho ^{[1
]}

机构：

[1] Sogang Univ, Dept Elect Engn, 35 Baekbeom Ro, Seoul 121742, South Korea

来源：

PROCEEDINGS INTERNATIONAL SOC DESIGN CONFERENCE 2017 (ISOCC 2017) | 2017年

关键词：

Analog front-end (AFE); Electromyogram (EMG); Instrumentation amplifier (IA); Chopper stabilization; Incremental analog-to-digital converter (IADC);

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents a 4-channel analog front-end (AFE) for Electromyogram (EMG) acquisition systems. Each input channel consists of a chopper-stabilized instrumentation amplifier (IA) and a low-pass filer (LPF). A 15-bit analog-to-digital converter (ADC) with a buffer amplifier is shared with four input channels through multiplexer. An incremental ADC with a 1.5-bit second-order feed-forward topology is employed to achieve 15-bit resolution. The prototype AFE is fabricated in a 0.18 mu m CMOS process with an active die area of 1.5 mm(2). It achieves 3.2 mu Vrms input referred noise with a gain of 40 dB and a cutoff frequency of 500 Hz for LPF while consuming 3.713 mW from a 1.8V supply.

引用

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页码：57 / 58

页数：2

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