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Harish1
Associate III
July 17, 2021
Solved

Wrong min. sample time mentioned in the STM32L475 data sheet.

The min sample time is 2.5 ADC clock cycles and max.ADC clock is 80MHz, with this the sampling time is coming as 31.25ns but you mentioned as 18.75ns. Here, I think ST has taken the ADC clock cycles are 1.5. I felt it as a bug.

0693W00000Czsr9QAB.png

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Imen GH
Imen GHBest answer
ST Employee
July 27, 2021

Hello @Community member​ ,

Thanks for reporting this Typo

The sentence is wrong, and it should be corrected as follow:

“Down to 31.25ns sampling time�? Or “Down to 187.5 ns conversion time�?

Imen 

2 replies

Imen GH
Imen GHBest answer
ST Employee
July 27, 2021

Hello @Community member​ ,

Thanks for reporting this Typo

The sentence is wrong, and it should be corrected as follow:

“Down to 31.25ns sampling time�? Or “Down to 187.5 ns conversion time�?

Imen 

Imen GH
ST Employee
July 27, 2021

Hello,

I have raised internally the DS typo for fix in next release.

Thanks again.

Imen