esp1, its a 2 op-amp IA so its a bit different.
FvM - putting the reference on the divider worked, thanks! the resulting circuit has somehow a 50mV offset on the output, not sure where this is coming from.
I suppose I could use a 2.5V REF chip from analog devices for this?
feels super akward to offset the filter cap like this though.. i dunno, my gut feeling is to just use +/-5V supply to the opamps instead
do you think a divide by 500 (followed by a multiply by 10) as a first stage will be good if the input is only 2volts? to small a signal?