OVERVIEW
An Analog-to-Digital (A/D) converter translates an analog input signal into a discrete digital code. This digital representation of the âreal worldâ signal can be manipulated in the digital domain for the purposes of information processing, computing, data transmission or control system implementation. In any application where a converter is used, it is advantageous to have the code structure complement the microcontrollerâs operands.
This application note describes the straight binary and binary twoâs complement code schemes that are outputted by Microchipâs Analog-to-Digital (A/D) converters.
All code examples given in this application note are for a 4-bit conversion. The median analog voltages in the tables are the equivalent analog voltages that are at the center of the digital code.
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