Sensor operates at about 35KHz. My initial thought is to use an op-amp in inverting configuration for ease of bias setting (reference voltage at +IN). I also want this circuit to work as low pass filter.
The problem I face are reasonable component values.
I do not want to use feedback resistor value larger than 10Meg ideally I would like to reduce it while maintaining -3dB at 35KHz.
This however means that I would need to reduce C(feed) to maintain fc at 35KHz which leads to lower output amplitude in pass band.
Is there any other topology I could use?
My goal is to keep SNR in my system as high as possible and noise as low as possible.