File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1109/BioCAS.2013.6679646
- Scopus: eid_2-s2.0-84893558229
Supplementary
-
Citations:
- Scopus: 0
- Appears in Collections:
Conference Paper: A CMOS neurostimulator with on-chip DAC calibration and charge balancing
| Title | A CMOS neurostimulator with on-chip DAC calibration and charge balancing |
|---|---|
| Authors | |
| Issue Date | 2013 |
| Citation | 2013 IEEE Biomedical Circuits and Systems Conference, BioCAS 2013, 2013, p. 89-92 How to Cite? |
| Abstract | A multi-channel biphasic neural stimulator with on-chip DAC calibration and current matching capabilities is presented. Each channel consists of two sub-binary radix DACs, for the anodic and cathodic stimulation phases, and a wideswing high output impedance current source and sink. A single integrator is shared among channels and serves to calibrate DAC coefficients and to closely match the anodic and cathodic stimulation phases. After calibration, the differential non-linearity is bounded between +/- 0.5 LSBs at 8-bit resolution, and the two stimulation phases can be matched to better than 50 nA. We demonstrate operation with stimulation through a tungsten microelectrode in saline, and show stimulator induced modulation of neural activity in the cortex of a rat. Our novel architecture allows for blind self-calibration, amenable to implantable neural interfaces. © 2013 IEEE. |
| Persistent Identifier | http://hdl.handle.net/10722/349023 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Greenwald, Elliot | - |
| dc.contributor.author | Chen, Cheng | - |
| dc.contributor.author | Thakor, Nitish | - |
| dc.contributor.author | Maier, Christoph | - |
| dc.contributor.author | Cauwenberghs, Gert | - |
| dc.date.accessioned | 2024-10-17T06:55:45Z | - |
| dc.date.available | 2024-10-17T06:55:45Z | - |
| dc.date.issued | 2013 | - |
| dc.identifier.citation | 2013 IEEE Biomedical Circuits and Systems Conference, BioCAS 2013, 2013, p. 89-92 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/349023 | - |
| dc.description.abstract | A multi-channel biphasic neural stimulator with on-chip DAC calibration and current matching capabilities is presented. Each channel consists of two sub-binary radix DACs, for the anodic and cathodic stimulation phases, and a wideswing high output impedance current source and sink. A single integrator is shared among channels and serves to calibrate DAC coefficients and to closely match the anodic and cathodic stimulation phases. After calibration, the differential non-linearity is bounded between +/- 0.5 LSBs at 8-bit resolution, and the two stimulation phases can be matched to better than 50 nA. We demonstrate operation with stimulation through a tungsten microelectrode in saline, and show stimulator induced modulation of neural activity in the cortex of a rat. Our novel architecture allows for blind self-calibration, amenable to implantable neural interfaces. © 2013 IEEE. | - |
| dc.language | eng | - |
| dc.relation.ispartof | 2013 IEEE Biomedical Circuits and Systems Conference, BioCAS 2013 | - |
| dc.title | A CMOS neurostimulator with on-chip DAC calibration and charge balancing | - |
| dc.type | Conference_Paper | - |
| dc.description.nature | link_to_subscribed_fulltext | - |
| dc.identifier.doi | 10.1109/BioCAS.2013.6679646 | - |
| dc.identifier.scopus | eid_2-s2.0-84893558229 | - |
| dc.identifier.spage | 89 | - |
| dc.identifier.epage | 92 | - |