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nrf51822 ADC pin internal resistance

watiss gravatar image

asked 2014-03-18 23:57:01 +0100

Hi. I am looking for the internal resistance of the ADC pin of my nrf51822. I have looked at the Product Specifications (as well as the Reference Manual and other documents just in case...) but didn't manage to find it :( . I saw typical values for other boards (Pi, STM32, etc.) but I need the exact value in the case of my Nordic nrf51822 board since I need to compute a precise value based on this resistance. Does anyone know where (or how) I can find (or determine) this value? Thanks in advance.

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hkn gravatar image

answered 2014-03-19 13:45:42 +0100

Hi,

Here's the impedances based on the different configurations: https://devzone.nordicsemi.com/index....

Another colleague of mine has posted a in-depth answer regarding other factors to think about when using the ADC here: https://devzone.nordicsemi.com/index....

Best regards Håkon

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Asked: 2014-03-18 23:57:01 +0100

Seen: 895 times

Last updated: mars 18 '14