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Active electrode IC combining EEG, electrical impedance tomography, continuous contact impedance measurement and power supply on a single wire | IEEE Conference Publication | IEEE Xplore

Active electrode IC combining EEG, electrical impedance tomography, continuous contact impedance measurement and power supply on a single wire


Abstract:

The IC presented integrates the front-end for EEG and Electrical Impedance Tomography acquisition on the electrode, together with contact impedance monitoring, so as to i...Show More

Abstract:

The IC presented integrates the front-end for EEG and Electrical Impedance Tomography acquisition on the electrode, together with contact impedance monitoring, so as to improve signal quality and functional integration of the two techniques for brain imaging applications. Only 4 wires connect the electrode to the back-end. The readout circuit consumes 1 mW, while the input referred noise for EEG signal acquisition is 0.45 μVRMS between 0.5 and 100 Hz, doubling when both EEG and EIT are acquired simultaneously.
Date of Conference: 12-16 September 2011
Date Added to IEEE Xplore: 13 October 2011
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Conference Location: Helsinki, Finland

References

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