Performance Specification¶
The Performance specification table summarizes shepherd’s key performance metrics. Refer to our paper for a detailed description of how these values were obtained. Some of the values were measured with an early prototype and may not accurately reflect the current hardware revision.
Range |
Harvesting voltage |
100 mV - 4.8 V |
Harvesting current |
0 mA - 25 mA |
|
Load voltage |
0 V - 4.8 V |
|
Load current |
0 mA - 25 mA |
|
Emulation voltage |
100 mV - 4 V |
|
Emulation current |
0 mA - 25 mA |
|
24h DC Accuracy |
Harvesting voltage |
19.53 uV +/- 0.01 % |
Harvesting current |
190 nA +/- 0.07 % |
|
Load voltage |
19.53 uV +/- 0.01 % |
|
Load current |
190 nA +/- 0.01 % |
|
Emulation voltage |
76.3 uV +/- 0.012 % |
|
Emulation current |
381.4 uA +/- 0.025 % |
|
Bandwidth |
All recording channels |
15 kHz |
Risetime |
Emulation voltage |
64 ms |
Emulation current |
19.2 us |
|
Max. Burden voltage |
Harvesting recorder |
50.4 mV |
Load recorder |
76.1 mV |
|
GPIO sampling speed |
580 kHz - 5 MHz |
|
Power consumption |
345 mA |
|
Max. Synchronization error |
< 1.0 us |