Name
Abstract | ||
|---|---|---|
We have developed, manufactured, and tested two analog CMOS integrated circuit "neurochips" for recording from arrays of densely packed neural electrodes. Device A is a 16-channel buffer consisting of parallel noninverting amplifiers with a gain of 2 V/V. Device B is a 16-channel two-stage analog signal processor with differential amplification and high-pass filtering. It features selectable gains of 250 and 500 V/V as well as reference channel selection. The resulting amplifiers on Device A had a mean gain of 1.99 V/V with an equivalent input noise of 10 μVrms. Those on Device B had mean gains of 53.4 and 47.4 dB with a high-pass filter pole at 211 Hz and an equivalent input noise of 4.4 μVrms. Both devices were tested in vivo with electrode arrays implanted in the somatosensory cortex. |
Year | DOI | Venue |
|---|---|---|
2003 | 10.1109/TBME.2002.807643 | Biomedical Engineering, IEEE Transactions |
Keywords | Field | DocType |
CMOS analogue integrated circuits,amplifiers,arrays,biomedical electrodes,biomedical electronics,high-pass filters,medical signal processing,neurophysiology,prosthetics,somatosensory phenomena,1.99 V,10 muV,16-channel two-stage analog signal processor,211 Hz,4.4 muV,47.4 dB,53.4 dB,artificial devices interfacing with brain,differential amplification,high-pass filtering,multichannel integrated circuits,neural amplifier,neural recording,neural signal processing,neurochip,neuroprosthetics | Signal processing,Computer science,Filter (signal processing),CMOS,Electronic engineering,High-pass filter,Analog signal,Equivalent input,Integrated circuit,Electrical engineering,Amplifier | Journal |
Volume | Issue | ISSN |
50 | 2 | 0018-9294 |
Citations | PageRank | References |
26 | 16.27 | 2 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Iyad Obeid | 1 | 103 | 27.76 |
| James C. Morizio | 2 | 26 | 16.95 |
| Karen A. Moxon | 3 | 67 | 24.65 |
| Miguel A. L. Nicolelis | 4 | 150 | 34.62 |
| Patrick D Wolf | 5 | 116 | 31.27 |