as title ,
Just like g-sensor will define a tolerance to verify the chip.
if I set LED1 current is 30 mA,
How to verify the ADC value I get is correct ?(in darkroom or other situation)
The resolution of the ADC, in nA/LSB, is specified in the spec table. If you can drive a known current source into the input of the device then you can verify that the ADC has the correct output…
At 25k TIA gain the ADC resolution is 3.27nA/LSB. THis is based on how much current is being seen at the input to the device. You wouldn't use the LED current in that calculation except in the…