A Multi-channel Current Stimulator Chip for High Impedance Neural Electrodes

• KAMEDA Seiji

  The Center for Advanced Medical Engineering and Informatics, Osaka University

• HAYASHIDA Yuki

  Graduate School of Engineering, Osaka University

• TANAKA Hiroki

  The Center for Advanced Medical Engineering and Informatics, Osaka University

• YAGI Tetsuya

  Graduate School of Engineering, Osaka University

Bibliographic Information

Other Title

• 高インピーダンス神経電極用多チャンネル電流刺激チップの開発
• コウインピーダンス シンケイ デンキョクヨウ タチャンネル デンリュウ シゲキ チップ ノ カイハツ

Abstract

We developed a prototype of a multi-channel current stimulator chip that can be connected to high-impedance neural stimulating electrodes was designed and fabricated by utilizing 0.25µm high-voltage CMOS technology. The chip consists of five current buffers for the line-parallel multi-channel outputs and multiple registers for setting the stimulation parameters, enabling a multiplexed stimulation with up to 20 channels per chip. The current buffer was designed to generate biphasic pulses with the maximum amplitude of ±100µA. We demonstrated that the current pulses generated by our chip were able to be delivered to the mammalian brain in-vivo.

Journal

• Transactions of the Society of Instrument and Control Engineers

  Transactions of the Society of Instrument and Control Engineers 50 (8), 594-601, 2014

  The Society of Instrument and Control Engineers

Keywords

• current stimulator
• integrated circuit
• high impedance electrode
• neural stimulation
• intracortical microstimulation

Details

• CRID: 1390001204510654720
• NII Article ID: 130004679651
• NII Book ID: AN00072392
• DOI: 10.9746/sicetr.50.594
• ISSN: 18838189
• ISSN: 04534654
• NDL BIB ID: 025779860
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025779860
• Web Site: https://www.jstage.jst.go.jp/article/sicetr/50/8/50_594/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed