The Comparator_A+ module supports precision slope analog-to-digital conversions, supply voltage supervision, and monitoring of external analog signals. Features of Comparator_A+ include: an inverting and non-inverting terminal input multiplexer, software selectable RC-filter for the comparator output, output provided to Timer_A capture input, software control of the port input buffer, interrupt capability, selectable reference voltage generator, comparator and reference generator powered down capability, and an input multiplexer.