Neural Probes · HD Series
SiNAPS 1-Shank 256-Channel Probe
CMOS active-pixel silicon probe — 256 simultaneous channels on one shank
A single mid-length shank with an active pixel beneath every site. Among the 371 probe designs in the design space it sits at the top: 256 sites (99th percentile), 5.5 mm shanks (52nd percentile of the 366 measured), a 3.77 mm-deep site array (93rd percentile), 1,560 sites/mm² (92nd percentile) and a 1.16 mm³ neural interface (77th percentile).
Small sites read a local patch at higher impedance, sharpening single-unit isolation, packed densely enough to track a unit across neighbouring sites. The mid-length shank reaches structures a few millimetres down.
Orders as a probe-plus-package assembly, in 3 package configurations. Silicon 50 µm thick. Optical stimulation runs from a separate laser or LED source. Research use only.
SKU prb_hdd--sinaps_1s_256_5p5mm · Neural Probes in the webstore
Specifications
| Channels | 256 |
|---|---|
| Shanks | 1 |
| Shank length | 5.5 mm |
| Site layout | Pixel |
| Site area | 196 µm² |
| Site pitch | 30 µm |
| Vertical span | 3768 µm |
| Substrate | Silicon |
| Site material | Platinum |
| Thickness | 50 µm |
| Neural interface volume | 1.160 mm³ (higher than 77% of 371 designs) |
| Site coverage density | 1,559.5 sites/mm² (higher than 92% of 371 designs) |
| Brain coverage density | 220.7 sites/mm³ (higher than 98% of 371 designs) |
|---|---|
| Architecture | Active pixel sensor |
| In-pixel gain | 46 dB (DC-4 kHz) |
| Input noise | 6.5 µVrms (300-7500 Hz) |
| Sampling rate | 20 kSample/s per pixel |
| Multiplexing | 32:1 |
| Power | <6 µW per electrode-pixel |
| Electrode pitch | 29 µm |
| Shank length | 5656 ± 60 µm |
| Active length | 3768 ± 1 µm |
| Shank width | 88 ± 2 µm |