I just want to check whether im using the ad623 in a way which it'll work.
I have two connected, both single supply with 0 and 3.3V. The gain resistor is set to 381 and the power supply has a 10uF capacitor as well as a 100 nF.
I have it set up so that when a positive voltage appears across the input the one ad623 should output the differential voltage * gain and the other 0V.
If a negative voltage appears across the terminals it should do the reverse where the other ad623 outputs the differential voltage * gain and the other 0V.
So in other words the +In and - in of each one is the inverse. The reference pin is tied to 0V.
When applying a small 1mV signal both seem to output positive voltages although the one ad623 should see 1mV and the other -1mV.
Anything I'm incorrectly applying?
Any help will be appreciated