Integration of a state of the art ECoG recording ASIC into a fully implantable electronic environment

Author

Foerster, Michael ; Porcherot, Jean ; Bonnet, Stephane ; van Langhenhove, A. ; Robinet, S. ; Charvet, Guillaume

Author_Institution

CEA/LETI/CLINATEC, CEA LETI, Grenoble, France

fYear

2012

fDate

28-30 Nov. 2012

Firstpage

232

Lastpage

235

Abstract

A fully implantable system for BCI studies has been designed around a state of the art ECoG recording ASIC. The device is able to record on 64 electrodes with selectable gain and sampling frequency, with less than 0.7μVRMS input referred noise in the [0.5Hz - 300Hz] band. It is powered remotely through an inductive link at 13.56MHz, communicates wirelessly on the MICS band at 402MHz with a custom designed base station connected to a PC and complies with the regulations applicable to class III AIMD. The architecture and design choices are detailed and the performances are compared with respect to other existing systems.

Keywords

application specific integrated circuits; biomedical electronics; brain-computer interfaces; electroencephalography; medical signal processing; neurophysiology; signal denoising; ECoG recording ASIC; EEG; MICS band; brain-computer interfaces; class III AIMD; electrodes; frequency 13.56 MHz; implantable electronic environment; inductive link; input referred noise; sampling frequency; wireless communication; Application specific integrated circuits; Base stations; Electrodes; Electroencephalography; Implants; Performance evaluation; Power supplies;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Circuits and Systems Conference (BioCAS), 2012 IEEE

Conference_Location

Hsinchu

Print_ISBN

978-1-4673-2291-1

Electronic_ISBN

978-1-4673-2292-8

Type

conf

DOI

10.1109/BioCAS.2012.6418454

Filename

6418454