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Analog-to-Digital Converter in the SAM3S4

Analog-to-Digital Converter in the SAM3S4

The purpose of this application note is to describe, from a software point of view while considering analog constraints, correct usage of the ADC implementation in the SAM3S4 series of the Atmel family of Arm®, Cortex™-M3 based Flash MCUs. The first objective is to define the precise timing setup of the ADC to avoid inexact usage that can lead to erroneous voltage conversion.


Analog-to-Digital converters (ADC) translate analog measurements, characteristic of most phenomena in the real world, to digital format to be used in information processing, computing, data transmission, and control systems.