Title :
Sigma-delta analogue-to-digital converters for ECG signal acquisition
Author :
McKee, James J. ; Evans, Noel E. ; Wallace, David
Author_Institution :
Bioeng. Centre, Ulster Univ., Jordanstown, UK
fDate :
31 Oct-3 Nov 1996
Abstract :
The high resolution of recent sigma-delta analogue to digital converters (ADCs) has made possible the direct acquisition of a range of biopotential signals. Traditionally 12 lead electrocardiogram (EGG) acquisition systems have been complex and hardware intensive. Sigma-delta ADCs have the potential to reduce the amount of hardware by about 60%, thereby reducing system cost, volume and power consumption. This paper contains an evaluation of the Analog Devices AD7716 22-bit, 4 channel sigma-delta ADC for diagnostic-quality ECG acquisition
Keywords :
analogue-digital conversion; biomedical electronics; electrocardiography; medical signal processing; signal detection; 12 lead electrocardiogram; Analog Devices AD7716; ECG signal acquisition; biopotential signals; diagnostic-quality ECG acquisition; electrodiagnostics; hardware amount reduction; sigma-delta analogue-to-digital converters; system cost reduction; Calibration; Delta-sigma modulation; Digital filters; Electrocardiography; Electrodes; Hardware; Instruments; Operational amplifiers; Signal resolution; Voltage;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.656826
