An Ultra-Low Power ECG Acquisition and Monitoring ASIC System for WBAN Applications

Author

Liu, Xin ; Zheng, Yuanjin ; Phyu, Myint Wai ; Endru, F.N. ; Navaneethan, V. ; Zhao, Bin

Author_Institution

Inst. of Microelectron., A*STAR, Singapore, Singapore

Volume

2

Issue

1

fYear

2012

fDate

3/1/2012 12:00:00 AM

Firstpage

60

Lastpage

70

Abstract

This paper proposes a power and area efficient electrocardiogram (ECG) acquisition and signal processing application sensor node for wireless body area networks (WBAN). This sensor node can accurately record and detect the QRS peaks of ECG waveform with high-frequency noise suppression. The proposed system is implemented in 0.18-μm complementary metal-oxide-semiconductor technology with two chips: analog front end integrated circuit (IC) and digital application specific integrated circuit (ASIC), where the analog IC consumes only 79.6 μW with area of 4.25 mm² and digital ASIC consumes 9 μW at 32 kHz with 1.2 mm². Therefore, this ECG sensor node is convenient for long-term monitoring of cardiovascular condition of patients, and is very suitable for on-body WBAN applications.

Keywords

CMOS analogue integrated circuits; CMOS digital integrated circuits; application specific integrated circuits; body area networks; cardiovascular system; electrocardiography; low-power electronics; medical signal detection; medical signal processing; patient monitoring; signal denoising; ASIC system monitoring; ECG sensor node; ECG waveform; QRS peaks; analog IC; analog front end integrated circuit; cardiovascular condition; chips; complementary metal-oxide-semiconductor technology; digital ASIC; digital application specific integrated circuit; frequency 32 kHz; high-frequency noise suppression; on-body WBAN applications; power 79.6 muW; power electrocardiogram acquisition; signal processing application sensor node; size 0.18 mum; ultralow power ECG acquisition; wireless body area networks; Application specific integrated circuits; Bandwidth; Electrocardiography; Gain; Monitoring; Noise; Analog front end; QRS detection; digital application specific integrated circuits (ASIC); electrocardiogram (ECG); signal acquisition; wavelet transform;

fLanguage

English

Journal_Title

Emerging and Selected Topics in Circuits and Systems, IEEE Journal on

Publisher

ieee

ISSN

2156-3357

Type

jour

DOI

10.1109/JETCAS.2012.2187707

Filename

6169953