I have piezo sensor which outputs around 1mV of signal. I am using an already build analog front end to measure the signal, with Vcc = 5V and Vss = 0V. To measure the signal, the front end has internal PGA and DAC and needs the input signals to be within range of 2.3V to 2.7V. I don't want to use any op-amps because I want to minimize the components and no additional PCBs.
I have thought something like this:
If R1 = R2, will the signal be centered to 2.5V? Are there any problems with this circuit? Or any other solutions?