Other Parts Discussed in Thread: INA126
Hi there,
Currently i'm trying to design a whetstone bridge circuit using load cell. The instrumentation amplifier which im using is the IN126 , and I have a 0-12V single powered power supply breakout.
The input to the amplifier is from the regulated power supply. The gain of the amplifier is 13 (Rg is chosen as 10K). The input what im giving is less than 0.5V. In my case ive tried giving 0.4V and 0.22V as the input. I have a pair of INA126, so ive compared the output of the two but it seems to be different for each...
For one of the INA126,
for input = 0.4V, the output what ive got is 6.65V. But the expected output is 5.2V.
for input = 0.22V, the output what ive got is 5.65V. But the expected output is 2.86V
For the another INA126, ive given the same inputs
for input = 0.4V, the output what ive got is 5.1V. But the expected output is 5.2V.
for input = 0.22V, the output what ive got is 5.8V. But the expected output is 2.86V
I have attached a schematic showing the setup I have. Any help would be much appreciated!
