A digital filter for mobile ECG measurement systems

Author

Völker, M. ; Neubauer, H. ; Johansson, J. ; Dorn, R. ; Hauer, J.

Author_Institution

Fraunhofer Inst. for Integrated Circuits IIS, Erlangen

fYear

2006

fDate

20-21 April 2006

Firstpage

45

Lastpage

48

Abstract

This paper presents the design and implementation of an integrated digital filter for ambulatory ECG monitoring. The requirements given by the standard IEC60601-2-47 which covers ambulatory ECG equipment are met. The filter is designed to follow a three bit delta sigma modulator and includes 512 times decimation. Measurements show that the average stop band attenuation is above 70 dB. The use of half band sub filters offers the possibility to move the decimation in front of them and hence reduce the power consumption. The power consumption of the filter is 2.7 muW at 51.2 kHz system clock

Keywords

IEC standards; biomedical telemetry; delta-sigma modulation; digital filters; electrocardiography; medical signal processing; mobile communication; patient monitoring; 2.7 muW; IEC60601-2-47 standards; ambulatory monitoring; delta sigma modulator; electrocardiographic equipment; half-band sub filters; integrated digital filter; mobile ECG measurement systems; stop band attenuation; Analog-digital conversion; Attenuation; Biomedical monitoring; Delta-sigma modulation; Digital filters; Electrocardiography; Energy consumption; Finite impulse response filter; Patient monitoring; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Medical Measurement and Applications, 2006. MeMea 2006. IEEE International Workshop on

Conference_Location

Benevento

Print_ISBN

1-4244-0253-0

Type

conf

DOI

10.1109/MEMEA.2006.1644457

Filename

1644457