Adafruit 1083 4 channel adc analogue to digital converter i2c adafruit 1085 the adafruit ads1115 16 bit adc is a tiny breakout board which provides 4 x adc channels over 2 wire i2c the chip can be configured as either 4 x single ended channels or as 2 x differential channels with at up to 860 samples per second small signals can be amplified up to 16 times by the built in programmable gain amplifier the board also features noise cancelling to keep the supply lines clean it uses one of fou