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Using the VREFBUF on the STM32L4

Question asked by Scott Dev on Apr 5, 2018
Latest reply on Apr 5, 2018 by waclawek.jan


  I am about to choose a STM32L4 chip and want to use the VREFBUF for more accurate readings, and seems to be as accurate as external reference chips.  I havent used this before and couldnt find the answer when searching on the forum.  What I am not sure about is if this is simply an output that has to be tied to the VREF+ input pin? Or after its enabled , then internal circuit uses it, saving the need to connect to external VREF+ input pin? 


Many Thanks