Abstract
This paper presents the design, implementation, and simulated and measured results of a complementary metal-oxide-semiconductor neurostimulator implemented in a 0.35 μm high-voltage process. To allow for a high stimulation voltage, and hence the greatest versatility of the neurostimulator in situ, a high-voltage CMOS process was used. The neurostimulator utilized current sources and sinks to simultaneously deliver and recover charge. It has the ability to deliver stimulus in three output current ranges using a current sink only, current source only, or both a current source and sink combined to provide focused stimulation. The worst case integral non-linearity and differential non-linearity errors were 0.2 LSB and 0.1 LSB respectively, and the current source and sink turn-on times were under 500 ns, providing fast switching time in response to stimuli instructions. The total die area was under 13 mm 2, well within the area constraints of our implantable vision prosthesis device.
Original language | English |
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Title of host publication | 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06 |
Publisher | IEEE, Institute of Electrical and Electronics Engineers |
Pages | 4651-4654 |
Number of pages | 4 |
ISBN (Print) | 1424400325, 9781424400324 |
DOIs | |
Publication status | Published - 1 Dec 2006 |
Externally published | Yes |
Event | International Conference of the IEEE Engineering in Medicine and Biology Society 2006 - Marriott Hotel, New York, United States of America Duration: 31 Aug 2006 → 3 Sept 2006 Conference number: 28th https://ieeexplore.ieee.org/xpl/conhome/4028925/proceeding?isnumber=4461641 (Proceedings) |
Conference
Conference | International Conference of the IEEE Engineering in Medicine and Biology Society 2006 |
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Abbreviated title | EMBC 2006 |
Country/Territory | United States of America |
City | New York |
Period | 31/08/06 → 3/09/06 |
Internet address |
Keywords
- Digital-to-analog converter (DAC)
- High-voltage CMOS
- Parallel neural stimulation
- Vision prosthesis