Print Email Facebook Twitter A 15-Channel digital active electrode system for multi-parameter biopotential measurement Title A 15-Channel digital active electrode system for multi-parameter biopotential measurement Author Xu, J. (Holst Centre) Büsze, Benjamin (Holst Centre) Van Hoof, Chris (IMEC) Makinwa, K.A.A. (TU Delft Electronic Instrumentation) Yazicioglu, Refet Firat (IMEC) Date 2015 Abstract This paper presents a digital active electrode (DAE) system for multi-parameter biopotential signal acquisition in portable and wearable devices. It is built around an IC that performs analog signal processing and digitization with the helpof on-chip instrumentation amplifiers, a 12 bit ADC and a digital interface. Via a standard bus, up to 16 digital active electrodes (15-channels) can be connected to a commercially available microcontroller, thus significantly reducing systemcomplexity and cost. In addition, the DAE utilizes an innovative functionally DC-coupled amplifier to preserve input DC signal, while still achieving state-of-the-art performance: 60 nV/sqrt(Hz) input-referred noise and 350 mV electrode-offset tolerance. A common-mode feedforward scheme improves the CMRR of anAE pair from 40 dB to maximum 102 dB. Subject Active electrodebiopotential measurementdigital interfaceDC-coupled amplifiercommon-mode feedforward (CMFF) To reference this document use: http://resolver.tudelft.nl/uuid:e18df776-27fb-425a-ace3-6f702c6975af DOI https://doi.org/10.1109/JSSC.2015.2422798 ISSN 0018-9200 Source IEEE Journal of Solid State Circuits, 50 (9), 2090-2100 Part of collection Institutional Repository Document type journal article Rights © 2015 J. Xu, Benjamin Büsze, Chris Van Hoof, K.A.A. Makinwa, Refet Firat Yazicioglu Files PDF 3625038_JSSC2422798.pdf 2.41 MB Close viewer /islandora/object/uuid:e18df776-27fb-425a-ace3-6f702c6975af/datastream/OBJ/view