ADC stands for Analog-to-Digital Converter. This connection is used by analog sensors. These sensors provide a voltage readout that needs to be converted into the actual measured vairable, e.g. temperature, fuel volume, etc.

Veronte autopilots are equipped with 5 connections of this kind. To set them up, the user needs to go to the Connections menu and click on ADC on the left-hand side panel. Every ADC connection that is set requires an integer variable associated where the voltage readout will be stored. The maximum voltage of the ADC connection is 3 V.

Let us consider a Fuel Level Sensor whose datasheet provides a direct relation of the voltage readout and the fuel volume (in L) through the polynomial $$y=-0.0498x^4+0.3002x^3-0.3083x^2+1.2423x+0.15$$, where $$y$$ is the fuel volume and $$x$$ is the voltage of the sensor.