The ADC 8 Click Board™ is a high precision, low-power, 16-bit analogue-to-digital converter (ADC), based around the ADS1115 IC. It is capable of sampling signals on four single-ended or two differential input channels.
Although the ADS1115 cannot use an external reference, it incorporates a low-drift programmable voltage reference, along with the programmable gain amplifier (PGA). This allows for great flexibility in terms of the input signal level: it can sample signals from ±256 mV, up to 6.144 V, allowing a very high precision for a wide range of input signals, making it an excellent choice for various instrumentation applications.