Low-Power Analog Integrated Circuits for Wireless ECG Acquisition Systems

This paper presents low-power analog ICs for wireless ECG acquisition systems. Considering the power-efficient communication in the body sensor network, the required low-power analog ICs are developed for a healthcare system through miniaturization and system integration. To acquire the ECG signal,...

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Published inIEEE transactions on information technology in biomedicine Vol. 16; no. 5; pp. 907 - 917
Main Authors Tsai, Tsung-Heng, Hong, Jia-Hua, Wang, Liang-Hung, Lee, Shuenn-Yuh
Format Journal Article
LanguageEnglish
Published United States IEEE 01.09.2012
Subjects
Analog filter
analog front-end ICs
analog-to-digital converter (ADC)
ECG signal acquisition
Electrical Equipment and Supplies
Electrocardiography
Electrocardiography - instrumentation
Electrocardiography - methods
Equipment Design
Humans
low noise amplifier (LNA)
low-power circuits
Medical services
Mixers
Monitoring
Monitoring, Ambulatory - instrumentation
power amplifier (PA)
power splitter
quadrature mixer
quadrature voltage-controlled oscillator (QVCO)
Radio frequency
Signal Processing, Computer-Assisted
System-on-a-chip
Wireless communication
Wireless Technology - instrumentation
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Abstract This paper presents low-power analog ICs for wireless ECG acquisition systems. Considering the power-efficient communication in the body sensor network, the required low-power analog ICs are developed for a healthcare system through miniaturization and system integration. To acquire the ECG signal, a low-power analog front-end system, including an ECG signal acquisition board, an on-chip low-pass filter, and an on-chip successive-approximation analog-to-digital converter for portable ECG detection devices is presented. A quadrature CMOS voltage-controlled oscillator and a 2.4 GHz direct-conversion transmitter with a power amplifier and upconversion mixer are also developed to transmit the ECG signal through wireless communication. In the receiver, a 2.4 GHz fully integrated CMOS RF front end with a low-noise amplifier, differential power splitter, and quadrature mixer based on current-reused folded architecture is proposed. The circuits have been implemented to meet the specifications of the IEEE 802.15.4 2.4 GHz standard. The low-power ICs of the wireless ECG acquisition systems have been fabricated using a 0.18 μm Taiwan Semiconductor Manufacturing Company (TSMC) CMOS standard process. The measured results on the human body reveal that ECG signals can be acquired effectively by the proposed low-power analog front-end ICs.
AbstractList This paper presents low-power analog ICs for wireless ECG acquisition systems. Considering the power-efficient communication in the body sensor network, the required low-power analog ICs are developed for a healthcare system through miniaturization and system integration. To acquire the ECG signal, a low-power analog front-end system, including an ECG signal acquisition board, an on-chip low-pass filter, and an on-chip successive-approximation analog-to-digital converter for portable ECG detection devices is presented. A quadrature CMOS voltage-controlled oscillator and a 2.4 GHz direct-conversion transmitter with a power amplifier and upconversion mixer are also developed to transmit the ECG signal through wireless communication. In the receiver, a 2.4 GHz fully integrated CMOS RF front end with a low-noise amplifier, differential power splitter, and quadrature mixer based on current-reused folded architecture is proposed. The circuits have been implemented to meet the specifications of the IEEE 802.15.4 2.4 GHz standard. The low-power ICs of the wireless ECG acquisition systems have been fabricated using a 0.18 μm Taiwan Semiconductor Manufacturing Company (TSMC) CMOS standard process. The measured results on the human body reveal that ECG signals can be acquired effectively by the proposed low-power analog front-end ICs.
This paper presents low-power analog ICs for wireless ECG acquisition systems. Considering the power-efficient communication in the body sensor network, the required low-power analog ICs are developed for a healthcare system through miniaturization and system integration. To acquire the ECG signal, a low-power analog front-end system, including an ECG signal acquisition board, an on-chip low-pass filter, and an on-chip successive-approximation analog-to-digital converter for portable ECG detection devices is presented. A quadrature CMOS voltage-controlled oscillator and a 2.4 GHz direct-conversion transmitter with a power amplifier and upconversion mixer are also developed to transmit the ECG signal through wireless communication. In the receiver, a 2.4 GHz fully integrated CMOS RF front end with a low-noise amplifier, differential power splitter, and quadrature mixer based on current-reused folded architecture is proposed. The circuits have been implemented to meet the specifications of the IEEE 802.15.4 2.4 GHz standard. The low-power ICs of the wireless ECG acquisition systems have been fabricated using a 0.18 mu m Taiwan Semiconductor Manufacturing Company (TSMC) CMOS standard process. The measured results on the human body reveal that ECG signals can be acquired effectively by the proposed low-power analog front-end ICs.
Author Liang-Hung Wang
Shuenn-Yuh Lee
Jia-Hua Hong
Tsung-Heng Tsai
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SubjectTerms Analog filter
analog front-end ICs
analog-to-digital converter (ADC)
ECG signal acquisition
Electrical Equipment and Supplies
Electrocardiography
Electrocardiography - instrumentation
Electrocardiography - methods
Equipment Design
Humans
low noise amplifier (LNA)
low-power circuits
Medical services
Mixers
Monitoring
Monitoring, Ambulatory - instrumentation
power amplifier (PA)
power splitter
quadrature mixer
quadrature voltage-controlled oscillator (QVCO)
Radio frequency
Signal Processing, Computer-Assisted
System-on-a-chip
Wireless communication
Wireless Technology - instrumentation
Title Low-Power Analog Integrated Circuits for Wireless ECG Acquisition Systems
URI https://ieeexplore.ieee.org/document/6157624
https://www.ncbi.nlm.nih.gov/pubmed/22374371
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https://search.proquest.com/docview/1113227114
Volume 16
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