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William Huang
Associate II
Jan 2, 2017 6:16 PM UTC
Solved

External VRef on VDDA on NUCLEO-F303K8

Posted on January 02, 2017 at 19:16

I was wondering if I am able to connect an external voltage reference of 4.096 volts to VDDA (to be used as a voltage reference for ADC) without damaging the board?

    This topic has been closed for replies.
    Khouloud GARSI
    Khouloud GARSIBest answer
    ST Employee
    Jan 3, 2017 9:42 AM UTC
    Posted on January 03, 2017 at 10:42

    Hello William,

    You should respect the values indicated on the STM32F303x8 reference manual and datasheet:

                                                      2 V ≤ VDDA = VREF+ ≤ 3.6 V

    If this answers your request, please click on correct 

    :)

    .

    Khouloud.

    2 replies

    Khouloud GARSI
    Khouloud GARSIBest answer
    ST Employee
    Jan 3, 2017 9:42 AM UTC
    Posted on January 03, 2017 at 10:42

    Hello William,

    You should respect the values indicated on the STM32F303x8 reference manual and datasheet:

                                                      2 V ≤ VDDA = VREF+ ≤ 3.6 V

    If this answers your request, please click on correct 

    :)

    .

    Khouloud.

    Tesla DeLorean
    Guru
    Jan 3, 2017 9:43 AM UTC
    Posted on January 03, 2017 at 10:43

    Doesn't that exceed device maximums? Review part data sheet.

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