I'm using AD8422 to amplify the siganl from bridge circuit.
when I/P voltage 5V,RG = 301 ohm i see the output amplified linearly.
for 0KG on bridge ckt = 0.3824V
1KG = 0.5089
2kG = 0.6350
3Kg = 0.7611
But for RG = 100 ohm
0KG = 2.2815
1KG = 3.0088
2Kg = 3.7405
3kg = 3.4270
Here i see at 3kg weight output dicerases.
I tried with changing input supply by 3V also but same behavior.
Kindly help. thank you.