RM0444 Rev 5 343/1390
RM0444 Analog-to-digital converter (ADC)
403
15 Analog-to-digital converter (ADC)
15.1 Introduction
The 12-bit ADC is a successive approximation analog-to-digital converter. It has up to 19
multiplexed channels allowing it to measure signals from 16 external and 3 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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