Lancashire, HT;
Jiang, D;
Demosthenous, A;
Donaldson, N;
(2018)
A Microchannel Neural Interface ASIC.
In:
2018 IEEE International Symposium on Circuits and Systems (ISCAS).
IEEE
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Abstract
This paper presents an application specific integrated circuit (ASIC) for use in a three-dimensional microchannel neural interface. The device is assembled with seven stacked ASICs with silicone microchannels instrumented in between. Each ASIC comprises tripolar electrodes for seven channels allowing recording or stimulation from any one of the 49 microchannels. The ASIC is implemented in 0.35μm high-voltage CMOS technology and occupies an active area of 4 mm2. The device has been tested demonstrating recording of 1 mV signals, and current controlled stimulation in the range of 5 μA to 500 μA (with 40 V compliance) and up to 50 kHz stimulation frequency. The device overcomes limits on numbers of connected microchannels in previous designs.
| Type: | Proceedings paper |
|---|---|
| Title: | A Microchannel Neural Interface ASIC |
| Event: | 2018 IEEE International Symposium on Circuits and Systems (ISCAS), 27-30 May 2018, Florence, Italy |
| Location: | Florence, Italy, Italy |
| Dates: | 27 May 2018 - 30 May 2018 |
| ISBN-13: | 9781538648827 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ISCAS.2018.8351380 |
| Publisher version: | https://doi.org/10.1109/ISCAS.2018.8351380 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Bioelectronics, electrodes, microchannels, neural interfaces |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10050404 |
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