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irawan1
Visitor II
January 17, 2006
Question

Unstable ADC reading result

  • January 17, 2006
  • 1 reply
  • 503 views
Posted on January 17, 2006 at 03:16

Unstable ADC reading result

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    1 reply

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    irawan1Author
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 12:09

    Dear all,

    i am using upsd3333d-80 pins, to measure voltage using adc ch0.

    The voltage measured came from a voltage divider using resister 2M7 and 300K, and the range of the the voltage being measured is 0-2.5V at ADC input pin. The VRef is connected to TS431 that gives 3.04V. My problem is i always got varying result of ADC reading (2-3 bit error). Any hints or suggestion, will be appreciated.

    thanks.

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