Title :
A CMOS IC for portable EEG acquisition systems
Author :
Martins, R. ; Selberherr, S. ; Vaz, F.
Author_Institution :
Inst. for Microelectron., Tech. Univ. Wien, Austria
Abstract :
This paper presents a monolithic low-power, low-noise analog front-end electroencephalogram (EEG) acquisition system. It draws only 500 μA from a standard 9 V battery, making it suitable for use in portable systems. Although fabricated in a standard CMOS technology, using current feedback techniques it achieves a CMRR of 100 dB while the total input noise referred to input is kept as low as 1.5 μV (RMS)
Keywords :
CMOS integrated circuits; calibration; data acquisition; electroencephalography; instrumentation amplifiers; medical signal processing; portable instruments; 1.5 muV; 100 dB; 500 muA; 9 V; CMOS IC; CMRR; current feedback; monolithic electroencephalogram acquisition; portable EEG acquisition; portable systems; standard CMOS technology; total input noise; 1f noise; Batteries; CMOS integrated circuits; CMOS technology; Circuit noise; Circuit testing; Electroencephalography; Instruments; Laser feedback; Resistors;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1998. IMTC/98. Conference Proceedings. IEEE
Conference_Location :
St. Paul, MN
Print_ISBN :
0-7803-4797-8
DOI :
10.1109/IMTC.1998.676985
