Title :
A smart 16-channel front-end system for extracelluar neural recording
Author :
Huang, Beiju ; Gui, Yun ; Zhang, Xu ; Pei, WeiHua ; Chen, HongDa
Author_Institution :
State Key Lab. on Integrated Optoelectron., Chinese Acad. of Sci., Beijing, China
Abstract :
An implantable 16-channel neural recording front-end system is presented for acute neural recording. This system consists of implantable silicon-based microelectrode arrays, neural-signal amplifiers and a microprocessor. The neural-signal amplifiers, which have been fabricated by a 0.35-μm CMOS process, have a mid-band gain of 66.5 dB, a high cut-off frequency at 9.6 kHz. Each recording channel has a tunable low cut-off frequency independently which is controlled by a microprocessor to fit different kinds of neural signals. The system has been tested and verified in-vitro experiment.
Keywords :
CMOS digital integrated circuits; elemental semiconductors; microelectrodes; microprocessor chips; neurophysiology; prosthetics; silicon; CMOS; extracelluar neural recording; frequency 9.6 kHz; implant; microelectrode arrays; microprocessor; neural signal amplifiers; size 0.35 mum; smart 16-channel front-end system; tunable low cut-off frequency; Cutoff frequency; Frequency measurement; Gain; Microelectrodes; Microprocessors; Preamplifiers; Neural signal amplifier; electrode array; low noise; neural recording system;
Conference_Titel :
Biomedical Circuits and Systems Conference (BioCAS), 2010 IEEE
Conference_Location :
Paphos
Print_ISBN :
978-1-4244-7269-7
Electronic_ISBN :
978-1-4244-7268-0
DOI :
10.1109/BIOCAS.2010.5709582
