ADUX1020Not Recommended for New Designs
The ADUX1020 is a highly efficient photometric sensor with an integrated 14-bit analog-to-digital converter (ADC) and a 20-bit burst accumulator that works...
Datasheet ADUX1020 on Analog.com
Generally the 10cm distance refers to a hand. As a very general approximation the distance and size will scale proportionally. If the area becomes half as large the sensitivity range will be cut by ~1/2
