128-channel, low level current-to-digital converter Up to 24-bit resolution Up to 22.6 kSPS (44.2 µs integration time) Simultaneous sampling No dead time, no loss of charge Ultralow noise down to 0.32 fC rms (2000 e *) User adjustable full-scale range INL: ±0.05% of reading of ±1.0 ppm FSRI .