4 Replies Latest reply on Mar 16, 2017 9:31 AM by vsrs

    Opamp at low Power

    chiragmodesara_1567941

      hi,

         

      i have been working on Temperature Transmitter. its need very low power . so i am using Psoc-4 which has low power mode.

         

      its work fine with RTD ..its consume only 3.2mA for full operation.

         

      Now i also want to sense thermocouple(J-K). For use thermocouple i need amplify the signal with two opamp configuration. because SAR adc cant directly read. so i put two opamp.so right now my power consumpation is 5.5 mA which is not good for Temperature Transmitter(4-20mA). i have to make it below 3.5mA. 

         

      so how can i do it??

         

      and 

         

      is that opamp of psoc-4 consume 1mA for its operation??