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ADC Fast and Slow Channels

Question asked by go.eric on Apr 6, 2016
Latest reply on Apr 7, 2016 by Amel N
Hi there,

Im working with the STM32F334C8xx Microcontroller , which has 2 ADC with up to 15 channels on each.

The datasheet states that for a given channel, there are up to 5 so named "fast channels" and 10 "slow channels". The main difference is in the minimal sampling time that is slightly longer in "slow" channels as it is in "fast channels", probably linked to input impedance and capacitive load on the channel.

The fact is that the datasheet is quite unclear on which channel is a "fast channel and which one is a slow one. I would guess that this is PIN linked but i found no detail on that subject neither in datasheets, user manual or application notes.

Is anywho aware of which channels operates in fast mode and which one operates in slow mode?