0.5-muhbox{m} CMOS Implementation of Analog Heart-Rate Extraction With a Robust Peak Detector

A robust high-accuracy analog-signal-processing 0.5-mum CMOS chip for real-time heart-rate (HR) extraction is presented. A novel peak-detector architecture is proposed and implemented to facilitate on- chip integration. The system is capable of processing electrocardiogram (ECG) signals with a peak-...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 2008-04, Vol.57 (4), p.690-698
Main Authors: Chen, Mingqi, Boric-Lubecke, O, Lubecke, V M
Format: Article
Language:English
Online Access:Get full text
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Summary:A robust high-accuracy analog-signal-processing 0.5-mum CMOS chip for real-time heart-rate (HR) extraction is presented. A novel peak-detector architecture is proposed and implemented to facilitate on- chip integration. The system is capable of processing electrocardiogram (ECG) signals with a peak-to-peak amplitude as low as 5 mV, without any prefiltering. Experimental results with prerecorded and real-time ECG signals have demonstrated the obtained R-R interval accuracy on the order of milliseconds. The system was also used to successfully extract HR intervals with Doppler radar. Such a system may significantly reduce ADC resolution and sampling speed requirements while providing high immunity to noise and DC offset drift.
ISSN:0018-9456
DOI:10.1109/TIM.2007.911629