44.4 Analog Connections

Each comparator has minimum four I/O pins that can be used as analog inputs. Each pair of comparators shares four pins. These pins must be configured for analog operation before using them as comparator inputs.

The Analog comparator embeds additional capabilities, enabling the option to connect more I/O pins from device to device, or other internal references. This selection is device specific, and for further details refer to the device specification.

Any internal reference source, such as a bandgap voltage reference or internal DAC must be configured and enabled prior to its use as a comparator input. Any external reference must be enabled and ready to be used, before the comparator is enabled.