Table 1.
The WOENI specifications
ECoG recording | Optical stimulation | ||
---|---|---|---|
# of channels | 2 | # of channels | 4 |
Mid-band gain | 49 dB | Stim. current | 5~30 mA, 8 bits |
Bandwidth | 1~200 Hz | Light intensity | 4~12 mW/mm2 |
Input-referred noise | 8.47 µVrms, 8.64 µVrms | Stim. period | 0.1~0.9 s in 10 steps, 1~10 s in 10 steps |
THD (11.3 mVPP input) | 1% | Duty cycle | 0.1~0.9% in 10 steps, 1~10% in 10 steps |
Dynamic range (1% THD) | 53.5 dB, 53.3 dB | Data transmission | |
Input impedance @ 1 kHz | 10 MΩ | Data throughput | 32 kbps |
CMRR | >110 dB @ 1 kHz | Dara error rate | < 0.3% |
PSRR | >80 dB @ 1 kHz | Transmission range | ~3 m |
Power consumption | 1.5 mW/channel | ENOB | 11 bits |
Recovery time | 5 ms | Sampling rate | 1 kS/s |