This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

OPA37: Need to know differential mode input impedance (capacitance) to design for feedback capacitor

Part Number: OPA37

I am looking to design a transimpedance amplifier for use in a pulse oximeter, I'd like to design not only for feedback resistor but also for the feedback capacitor but for this I need to know the differential input impedance, it is given in the datasheet for common mode input impedance but nowhere does it mention what the differential mode is, can anyone help?