4 Replies Latest reply on Jun 6, 2014 1:18 AM by user_14586677

    Implement a sensor interface in PSoC 1

    li.gong

      Hello everyone

         

      I have some problems while I implement the circuit in PSoC 1.

         

      the sensor is a three electrode sensor. the RE is a reference electrode and the voltage is set to 2.5V, the WE is working electrode and it is connected to a trans-impendance amplifier. The TIA is Implemented by configuring a CT Block. while the sensor is working, the current flows from WE to CE. The problem is, for the CE, counter electrode, I don't know how to connect it to the amplifier U2-A in PSoC 1 because there is no plain opamp in PSoC 1. Is there anyone has any idea? Thanks!

         

      Best regards
      Li