AC Drivers

This Analog Comparator (AC) driver provides an interface for voltage comparison of two input channels.

The following driver variants are available:

  • AC Synchronous Driver: The driver supports polling for hardware changes, functionality is synchronous to the main clock of the MCU.

  • AC Asynchronous Driver: The driver supports a callback handler for the IRQ caused by hardware state changes. Functionality is asynchronous to the main clock of the MCU.

AC Basics and Best Practice

An analog comparator compares two analog voltage levels, and outputs a digital value indicating which is the larger. The comparator has normally two analog inputs, V+ and V-, but internal sources in the MCU can also be used as source for one of the inputs. The digital output value is outputted on Vout.