App note: Analog-to-Digital conversion using a PIC16C5X/PIC16F5X


PIC16C5X and PIC16F5X microcontroller families are low cost off-the-shelf solution for common analog measurements like voltage and current. Here’s an app note (PDF) from Microchip on how to do A/D conversion on these chips.

The converter requires only five external components and is software and hardware configurable for conversion resolutions from six bits up to ten bits, and conversion times of 250 us or longer. The method is usable for both voltage and current conversion and uses a software calibration technique that compensates for time and temperature drift, as well as component errors.

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