Non-contact Low Power EEG/ECG Electrode for High Density Wearable Biopotential Sensor Networks
- 1 June 2009
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in 2009 Sixth International Workshop on Wearable and Implantable Body Sensor Networks
- p. 246-250
- https://doi.org/10.1109/bsn.2009.52
Abstract
A non-contact capacitive biopotential electrode with a common-mode noise suppression circuit is presented. The sensor network utilizes a single conductive sheet to establish a common body wide reference line, eliminating the need for an explicit signal ground connection. Each electrode senses the local biopotential with a differential gain of 46 dB over a 1-100 Hz bandwidth. Signals are digitized directly on board with a 16-bit ADC. The coin sized electrode consumes 285 ¿A from a single 3.3 V supply, and interfaces with a serial data bus for daisy-chain integration in body area sensor networks.Keywords
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