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
Both are outputting fullscale (3.3V) regardless of input
Did you use the in amp diamond plot tool on the website?
Can you attach a schematic with voltage readings on all nodes?
i Didn't, looking into this now. Thank you