Power consumption & processor budget, mostly -- each sample takes a certain amount of energy, and a certain amount of processing ticks. The fewer samples you take per second, the less power (both meanings) you consume.
OK. Thanks. The application to use this is a port of the MMDVM (Multi Mode Digital Voice Modem) project. We are looking at sampling audio at 24 Ksamples/second, so this is interesting information. I'll forward it to the guy doing the actual electronic design of the interface.
OK. Got it. :-)
In the mean time, I found another reason: I was testing my code with the onboard temperature sensor. Apparently, that device requires a
I do not if there are other sensors that require a longer sampletime.
I haven't checked that part, but I believe the parameter you are speaking of, kristoff, is "sample and hold" time. This is the circuit that is just ahead of the ADC that samples the analog signal and holds it long enough for the ADC to convert it accurately.
This is different than sample time, or sample period, is is 1 / sample rate.