ALC DC performance index is residual AMB DC components. Our part this parameter is low to 0.5nA with 1uA to 30uA PD current input.
For DC ambient light cancellation, the lamp will be ON and OFF for 10sec periodically.
Two measurements, one is exposure, the other is ambient.
Calculate PD current delta of exposure when AMB is on and off, that is the residual.
