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brian4
Visitor II
July 18, 2003
Question

ADC Ref on ST7 Lite

  • July 18, 2003
  • 3 replies
  • 678 views
Posted on July 18, 2003 at 11:14

ADC Ref on ST7 Lite

    This topic has been closed for replies.

    3 replies

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    brian4Author
    Visitor II
    July 16, 2003
    Posted on July 16, 2003 at 14:10

    I notice that there is no ADC ref pin on these devices what is the best low cost solution to get a good 5V ref.

    Is it just to use a good 5V regulator or are there any other methods?

    I
    itsmejatinus
    Visitor II
    July 17, 2003
    Posted on July 17, 2003 at 07:21

    It can be done using good voltage regulator. There is one application note available, downloadable from the same site i.e AN1636 ''UNDERSTANDING AND MINIMISING ADC CONVERSION

    ERRORS''.

    Hope this would help.
    S
    stephanie
    Visitor II
    July 18, 2003
    Posted on July 18, 2003 at 11:14

    Effectively on some devices Vdda is internally connected to Vdd and Vssa to Vss.

    You will find advises on some dedicated application notes downloadable on this site!
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