Table 2. Electrical Characteristics of the Main Circuit Blocks.
1st Order Sigma-Delta Converter | ||||
range | 1 μA | 100 nA | 10 nA | |
bandwidth | 230 Hz | 230 Hz | 340 Hz | |
ENOB | 11.9 bit | 10.1 bit | 6.8 bit | |
2nd Order Sigma-Delta Converter | ||||
range | 1 μA | 100 nA | 10 nA | 1 nA |
BW | 1 kHz | 1 kHz | 1 kHz | 130 Hz |
int. RMS noise | 250 pA | 16.8 pA | 3.2 pA | 540 fA |
ENOB | 13.3 bit | 11.6 bit | 10 bit | 7.9 bit |
Potentiostat | ||||
slew rate | 350 kV/s | |||
sweep rate | 0–300 V/s | |||