AN INTEGRATED MULTI-CHANNEL SYSTEM FOR BIOMEDICAL SIGNAL ACQUISITION

Jakob M. Tomasik, Wjatscheslaw Galjan, Kristian M. Hafkemeyer, Dietmar Schroeder, Wolfgang H. Krautschneider

2011

Abstract

A CMOS configurable system-on-chip (SoC) for biomedical signal acquisition is described. The SoC is composed of 10 channels, each channel including a programmable analog front-end (AFE) and a 20 bit analog-to-digital converter (ADC). The digitized signals are read out via a high-speed serial communication bus. The AFE includes a common-mode rejection ratio (CMRR) calibration circuitry resulting in a CMRR of more than 80 dB and an active DC-suppression circuitry giving the DC-coupled instrumentation amplifier the possibility to tolerate DC-offsets of up to ±1 V for a power supply voltage of 3.3 V. In low-noise mode the AFE achieves an input referred noise of less than 50 nVrms for EEG application (0.5-70 Hz) and the power consumption of a channel including AFE and ADC is less than 5 mW in low-power mode. A prototype has been fabricated in a 0.35 µm CMOS process.

Paper Citation

in Harvard Style

Tomasik J., Galjan W., Hafkemeyer K., Schroeder D. and Krautschneider W. (2011). AN INTEGRATED MULTI-CHANNEL SYSTEM FOR BIOMEDICAL SIGNAL ACQUISITION . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011) ISBN 978-989-8425-37-9, pages 36-45. DOI: 10.5220/0003137600360045

in Bibtex Style

@conference{biodevices11,
author={Jakob M. Tomasik and Wjatscheslaw Galjan and Kristian M. Hafkemeyer and Dietmar Schroeder and Wolfgang H. Krautschneider},
title={AN INTEGRATED MULTI-CHANNEL SYSTEM FOR BIOMEDICAL SIGNAL ACQUISITION},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011)},
year={2011},
pages={36-45},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003137600360045},
isbn={978-989-8425-37-9},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011)
TI - AN INTEGRATED MULTI-CHANNEL SYSTEM FOR BIOMEDICAL SIGNAL ACQUISITION
SN - 978-989-8425-37-9
AU - Tomasik J.
AU - Galjan W.
AU - Hafkemeyer K.
AU - Schroeder D.
AU - Krautschneider W.
PY - 2011
SP - 36
EP - 45
DO - 10.5220/0003137600360045