A standard CMOS neural stimulator IC with high voltage compliant output current driver

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

This paper presents a 180nm CMOS biphasic neural stimulator integrated circuit for implantable prosthetic devices. The proposed stimulator has the ability to deliver up to 1-mA of well-matched biphasic current through 10-kΩ load using 12.8 V supply voltage. A voltage compliance of 11.5 V is achieved by utilizing a cascode current-mirror output driver topology. In order to allow standard CMOS working at high voltage, transistor stacking and dynamic gate biasing techniques are used. In addition, an active charge balancing circuit is utilized for maintaining zero net charge when a stimulation cycle is complete.

Original languageEnglish
Title of host publicationProceedings - International SoC Design Conference 2017, ISOCC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages316-317
Number of pages2
ISBN (Electronic)9781538622858
DOIs
StatePublished - 29 May 2018
Event14th International SoC Design Conference, ISOCC 2017 - Seoul, Korea, Republic of
Duration: 5 Nov 20178 Nov 2017

Publication series

NameProceedings - International SoC Design Conference 2017, ISOCC 2017

Conference

Conference14th International SoC Design Conference, ISOCC 2017
Country/TerritoryKorea, Republic of
CitySeoul
Period5/11/178/11/17

Keywords

  • Active charge balancing
  • Dynamic biasing
  • High-voltage
  • Neural stimulation
  • Transistor stacking

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