3 Replies Latest reply on Jul 16, 2018 6:00 AM by VasanthR_91

    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
          VasanthR_91

          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
              VasanthR_91

              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