Adafruit 1083 4 channel adc analogue to digital converter i2c adafruit 1083 the adafruit ads1015 4 channel adc gives your next project 12 bit precision at 3300 samples per second over 2 wire i2c the adc can be used as either 2 x differential or 4 x single ended channels and it has a programmable pre amp up to 16x this little breakout board has built in noise suppression to keep the supply lines clean it uses one of four possible i2c addresses allowing you to run 4 x boards on the same 2