Abstract
A 10 channel CMOS integrated circuit (IC) for biomedical signal acquisition is presented. Each channel of the IC includes a programmable analog front-end (AFE) and a 20 bit analog-to-digital converter (ADC). An active DC-suppression circuitry allows to tolerate DC-offsets of up to ±1 V for a power supply voltage of 3.3 V. The AFE includes a common-mode rejection ratio (CMRR) calibration circuitry resulting in a CMRR of more than 80 dB. In low-noise mode the AFE achieves an input referred noise of less than 0.11 μV rms for EEG application (0.5-70 Hz) and the power consumption of the IC is less than 30 mW in low-power mode. An experimental USB-Stick for biomedical signal acquisition has been realized using the IC.
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Atmel Corporation, San Jose, USA, http://www.atmel.com
Future Technology Devices International Limited, Glasgow, UK, http://www.ftdichip.com
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Tomasik, J.M., Galjan, W., Hafkemeyer, K.M., Schroeder, D., Krautschneider, W.H. (2013). A Configurable Integrated Circuit for Biomedical Signal Acquisition. In: Fred, A., Filipe, J., Gamboa, H. (eds) Biomedical Engineering Systems and Technologies. BIOSTEC 2011. Communications in Computer and Information Science, vol 273. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29752-6_4
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DOI: https://doi.org/10.1007/978-3-642-29752-6_4
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