Adafruit has a nice ADC module based on the TI ADS1115 ADC that has internal voltage reference, programmable gain, and either 4 single inputs or 2 diff inputs. They also have an arduino library to support the chip.
Adafruit has a nice ADC module based on the TI ADS1115 ADC that has internal voltage reference, programmable gain, and either 4 single inputs or 2 diff inputs. They also have an arduino library to support the chip.