A smart 16-channel front-end system for extracelluar neural recording

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 proc...

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Bibliographic Details
Main Authors: Beiju Huang, Yun Gui, Xu Zhang, Weihua Pei, Hongda Chen
Format: Conference Proceeding
Language:English
Subjects:
Cutoff frequency
electrode array
Frequency measurement
Gain
low noise
Microelectrodes
Microprocessors
neural recording system
Neural signal amplifier
Preamplifiers
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Description
Summary: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.
ISSN:2163-4025
2766-4465
DOI:10.1109/BIOCAS.2010.5709582