JSTS:Journal of Semiconductor Technology and Science

The Institute of Electronics and Information Engineers (대한전자공학회)
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An Arbitrary Waveform 16 Channel Neural Stimulator with Adaptive Supply Regulator in 0.35 ㎛ HV CMOS for Visual Prosthesis

  • Seo, Jindeok (Department of Electronics, Chungnam National University) ;
  • Lim, Kyomuk (Department of Electronics, Chungnam National University) ;
  • Lee, Sangmin (ASRI/ISRC, School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Ahn, Jaehyun (ASRI/ISRC, School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Hong, Seokjune (ASRI/ISRC, School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Yoo, Hyungjung (ASRI/ISRC, School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Jung, Sukwon (ASRI/ISRC, School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Park, Sunkil (ASRI/ISRC, School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Cho, Dong-Il Dan (ASRI/ISRC, School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Ko, Hyoungho (Department of Electronics, Chungnam National University)
  • Received : 2012.06.05
  • Published : 2013.02.28
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Abstract

We describe a neural stimulator front-end with arbitrary stimulation waveform generator and adaptive supply regulator (ASR) for visual prosthesis. Each pixel circuit generates arbitrary current waveform with 5 bit programmable amplitude. The ASR provides the internal supply voltage regulated to the minimum required voltage for stimulation. The prototype is implemented in $0.35{\mu}m$ CMOS with HV option and occupies $2.94mm^2$ including I/Os.

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References

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