RM0453 Rev 2 531/1454
RM0453 Analog-to-digital converter (ADC)
591
18 Analog-to-digital converter (ADC)
18.1 Introduction
The 12-bit ADC is a successive approximation analog-to-digital converter. It has up to 18
multiplexed channels allowing it to measure signals from 12 external and 4 internal sources.
A/D conversion of the various channels can be performed in single, continuous, scan or
discontinuous mode. The result of the ADC is stored in a left-aligned or right-aligned 16-bit
data register.
The analog watchdog feature allows the application to detect if the input voltage goes
outside the user-defined higher or lower thresholds.
An efficient low-power mode is implemented to allow very low consumption at low
frequency.
A built-in hardware oversampler allows analog performances to be improved while off-
loading the related computational burden from the CPU.
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