evengravy Posted October 10, 2013 Report Share Posted October 10, 2013 Hi I am creating a project with the new arduino due and I need to convert the voltage output (0.55v to 2.75v) from the DAC into a range that is linear from -5v to +5vI have looked through national semi app note 31 and in the upper right corner of page 6 there is a circuit for voltage conversion but I'm really stuck of where to go from here, I have no idea how to calculate the offset I need and the gain required.http://www.ti.com/ww/en/bobpease/assets/AN-31.pdfI have an accurate and stable +10v and -10v supply to work with,Can anyone help? I'd really appreciate any input,Thanks and regards Quote Link to comment Share on other sites More sharing options...
Hero999 Posted October 13, 2013 Report Share Posted October 13, 2013 It's fairly straight forward.The input voltage range is 2.75-0.55 = 2.2VThe output voltage range is 5 - -5 = 10VThe gain is 10/2.2 = 4.545V Quote Link to comment Share on other sites More sharing options...
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