Document Detail


A fully flexible stimulator using 65 nm CMOS process for 1024-electrode epi-retinal prosthesis.
MedLine Citation:
PMID:  19964765     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This paper presents a fully flexible stimulator using 65 nm CMOS process for a 1024-electrode epi-retinal prosthesis. The stimulator can select any number of electrodes at any time and also supports both mono-polar and multi-polar stimulation. Furthermore, the stimulator supports a wide range of stimulus parameters. A novel feature is that the electrode driver operates in an alternately pull-push manner, which helps reduce headroom voltage while guaranteeing charge balance at the active electrode. The use of positive supplies instead of both positive and negative supplies simplifies CMOS circuit design. The current distribution between two nearby simultaneously active electrode groups was investigated and measurement result showed a maximum current crosstalk of 8%.
Authors:
N Tran; J Yang; S Bai; D Ng; M Halpern; D B Grayden; E Skafidas; I Mareels
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference     Volume:  2009     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2009  
Date Detail:
Created Date:  2009-12-07     Completed Date:  2010-03-25     Revised Date:  2014-08-21    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1643-6     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Electric Stimulation*
Electrodes*
Prostheses and Implants*
Retina*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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