%C Santiago
%A Y.H. Lim
%A L. Xia
%I IEEE Computer Society
%T A low power biopotential amplifier in 0.35um CMOS for portable EEG signal amplification
%R 10.1109/LASCAS.2014.6820282
%D 2014
%L scholars5125
%J 2014 IEEE 5th Latin American Symposium on Circuits and Systems, LASCAS 2014 - Conference Proceedings
%O cited By 0; Conference of 2014 IEEE 5th Latin American Symposium on Circuits and Systems, LASCAS 2014 ; Conference Date: 25 February 2014 Through 28 February 2014; Conference Code:106423
%X In this paper, a low power differential biopotential amplifier (BPA) targeted for front-end electroencephalogram (EEG) signal amplification is reported. The proposed BPA is chopper stabilized to minimize flicker noise or 1/f noise, improving the fidelity of the signal measurement. This work aims to provide a low power BPA design solution for portable EEG application. This work proposes a non-overlapping clocking scheme for demodulation chopping for chopping artifacts reduction while maintaining low power consumption. This work is simulated in MIMOS 0.35um CMOS process and has achieved around 57dB of gain, ultra-low power consumption of 0.81μW with noise performance of 347nV/sqrt(Hz) and supply voltage of 1.8V. © 2014 IEEE.
%K Amplifiers (electronic); Chopper amplifiers; CMOS integrated circuits; Signal processing, Biopotential amplifiers; Biopotentials; Chopper stabilization; Electroencephalogram signals; Low Power; Low-power consumption; Signal measurement; Ultra-low power consumption, Electroencephalography