Please use this identifier to cite or link to this item: https://doi.org/10.1007/s10470-005-3007-x
Title: A CMOS continuous-time low-pass notch filter for EEG systems
Authors: Qian, X. 
Xu, Y.P. 
Li, X. 
Keywords: EEG
Low-pass notch filter
OTA-C
Powerline interference
Issue Date: Sep-2005
Source: Qian, X., Xu, Y.P., Li, X. (2005-09). A CMOS continuous-time low-pass notch filter for EEG systems. Analog Integrated Circuits and Signal Processing 44 (3) : 231-238. ScholarBank@NUS Repository. https://doi.org/10.1007/s10470-005-3007-x
Abstract: A CMOS OTA-C low-pass notch filter for EEG application is described. The pass-band covers four bands of brain wave and provides more than 65 dB attenuation for the 50 Hz power line interference. The OTA works in the weak inversion region and a low transconductance of 3 nA/V is achieved. The low transconductance enables using small capacitors in the OTA-C filter so that the filter is suitable for the multi-channel EEG integrated circuits. The measured results show the good performance of the filter for filtering the noise in acquired EEG signals. © 2005 Springer Science + Business Media, Inc.
Source Title: Analog Integrated Circuits and Signal Processing
URI: http://scholarbank.nus.edu.sg/handle/10635/53942
ISSN: 09251030
DOI: 10.1007/s10470-005-3007-x
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