Dear all, for a thesis I'm looking for applications where a transimpedance amplifier is used for measuring a small sine wave current (AC current). Means on the non inverting input of the transimpedance amplifier (TIA) a reference sine signal is conneted. On the inverting input a sensor is connected. As soon as the sensor draws a current this current leads to a change in voltage of the TIA output. I would be very glad when you could send me examples where a wiring like this is realized. Kind Regards Ron
: Moved by Moderator
You noticed that applying a voltage to the noninverting input will either change the voltage across the sensor accordingly or (if that’s not possible) force the output of the TIA into one of its rails? I couldn’t imagine why you would use such a measurement setup on a DUT.