DocumentCode
1861887
Title
A 2.4µA continuous-time electrode-skin impedance measurement circuit for motion artifact monitoring in ECG acquisition systems
Author
Kim, Sunyoung ; Yazicioglu, Refet Firat ; Torfs, Tom ; Dilpreet, Buxi ; Julien, Penders ; Van Hoof, Chris
Author_Institution
IMEC, Leuven, Belgium
fYear
2010
fDate
16-18 June 2010
Firstpage
219
Lastpage
220
Abstract
A continuous time electrode skin impedance monitoring system is implemented in parallel with ECG monitoring. To avoid degradation of the ECG signal quality, chopper stabilized AC current sources are adopted. Measured impedance signal is used as a reference signal input for a post processing adaptive filter removing motion artifacts in the ECG signal. The impedance measurement core is implemented in 0.5μm CMOS process and dissipates 2.4μA from a 2V.
Keywords
CMOS integrated circuits; biomedical electrodes; biomedical measurement; electric impedance measurement; electrocardiography; skin; CMOS process; ECG acquisition systems; ECG signal quality; chopper stabilized AC current sources; continuous-time electrode-skin impedance measurement circuit; current 2.4 muA; motion artifact monitoring; reference signal input; size 0.5 mum; voltage 2 V; Choppers; Electrocardiography; Electrodes; Impedance; Impedance measurement; Monitoring; Skin;
fLanguage
English
Publisher
ieee
Conference_Titel
VLSI Circuits (VLSIC), 2010 IEEE Symposium on
Conference_Location
Honolulu, HI
Print_ISBN
978-1-4244-5454-9
Type
conf
DOI
10.1109/VLSIC.2010.5560290
Filename
5560290
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