3 Replies Latest reply on Jul 16, 2018 6:00 AM by vsrs

    IDAC PSOC4

    r.lehmkau_2992946

      Hi, I am using the IDAC of a PSOC 4. What is the temperature drift of the current? Is it the same tolerance as the reference voltage?

        • 1. Re: IDAC PSOC4
          vsrs

          Hi,

           

          Temperature drift of the IDAC is not normally spec present in the datasheet. Could you please let us know what you are trying to do?

           

          Best Regards,
          VSRS

          • 2. Re: IDAC PSOC4
            r.lehmkau_2992946

            Simplified, I am using the IDAC in combination with a resistor and an Opamp (Buffer) to generate a voltage over another variable resistor. Simultanouesly, I am measuring the current through the variable resistor to calculate the power dissipation.

             

            I want to keep the electrical power constant for futher regulation processes. To calculate the tolerances of this regulation, I need to know all drift parameters.

             

            Best regards,

            Robin

            • 3. Re: IDAC PSOC4
              vsrs

              Hello Robin,

               

              The drift value spec of the component is  10% (conditions -45 to 130C and 1.7V to 5.5V and across all corners). This is the worst case value and the actual device performance might be much better.

              Best Regards,
              VSRS