What is the part number of the sensor, maybe post its datasheet
or link to it ?
the sensor is a kind of electrochemical sensor to detect the CO gas. The datasheet is:
the problem now I'm facing is how to implement the opamp U2-A and the feedback resistor capacitor R1 R2 C3 C4 in PSoC. I have tried to configure an SC block according AN2223 but it seems not right...
This might be one possibility, but I would be concerned about the
noise generated by a switched C OpAmp. However 2 pole LP filter
inherent in the double RC might be enough to allevaite this.