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

Author

Gui, Yun ; Zhang, Xu ; Pei, Weihua ; Huang, Beiju ; Chen, HongDa

Author_Institution

State Key Lab. on Integrated Optoelectron., Chinese Acad. of Sci., Beijing, China

fYear

2010

fDate

22-24 Sept. 2010

Firstpage

408

Lastpage

411

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 amplifiers and a microprocessor. The neural amplifiers, which have been fabricated in 0.35 μm 2P4M CMOS process, have a mid-band gain of 66.5 dB, a high cut-off frequency of 5.7 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; amplifiers; biomedical electrodes; biomedical electronics; elemental semiconductors; microelectrodes; microprocessor chips; neural chips; neurophysiology; prosthetics; silicon; 2P4M CMOS process; acute neural recording; extracelluar neural recording; frequency 5.7 kHz; gain 66.5 dB; implantable silicon-based microelectrode arrays; microprocessor; neural amplifiers; size 0.35 mum; smart 16-channel front-end system; tunable low cut-off frequency; Cutoff frequency; Frequency control; Gain; Microelectrodes; Microprocessors; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microelectronics and Electronics (PrimeAsia), 2010 Asia Pacific Conference on Postgraduate Research in

Conference_Location

Shanghai

Print_ISBN

978-1-4244-6735-8

Electronic_ISBN

978-1-4244-6736-5

Type

conf

DOI

10.1109/PRIMEASIA.2010.5604877

Filename

5604877