Title :
A 16 × 16 multi-electrode array with integrated CMOS amplifiers for neural signal recording
Author :
Wang, Lu ; Freedman, David S. ; Knepper, Ronald W. ; Ünlü, M. Selim ; Sahin, Mesut
Author_Institution :
Dept. of Electr. & Comput. Eng., Boston Univ., Boston, MA, USA
Abstract :
This paper reports on an active 16 × 16, low-noise, low-power, multi-electrode array (MEA) neural sensor chip designed in IBM BiCMOS 8HP 0.13 μm process with a total gain of 60 dB per input, a 20 kHz sample rate, an input-referred noise of 5.3 μVrms over 10 Hz to 10 kHz and a total power dissipation of 15.8 mW, or 61.7 μW per channel. A C4 microelectrode is attached to the input of each amplifier forming a multi-electrode array with 200 μm pitch for extracellular neural recording.
Keywords :
CMOS integrated circuits; amplifiers; bioelectric potentials; biomedical electrodes; biomedical electronics; cellular biophysics; neurophysiology; sensor arrays; IBM BiCMOS; extracellular neural recording; input referred noise; integrated CMOS amplifiers; multielectrode array; neural sensor chip; neural signal recording; total power dissipation; Arrays; CMOS integrated circuits; Calibration; Extracellular; Gain; Multiplexing; Noise;
Conference_Titel :
Biomedical Circuits and Systems Conference (BioCAS), 2011 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-1469-6
DOI :
10.1109/BioCAS.2011.6107732
