Tool/software:
Hello there,
I am trying to measure a voltage drop across a shunt and am using INA296A4 (tried also with B4 version) and the gain is nowhere near 100. Instead i keep measuring a gain of 4 to 6 and sometimes even around 1. I have tried also connecting the device externally to a supply and supplied a voltage at the IN+ and IN- of 10mV and the output was around 10mV as well ( I assumed maybe my Layout is having a negative effect). When increasing the IN+ and IN- voltage, the gain increases to around 4 or 5. I get the same effect if I supply a current through the shunt - nothing changes and the gain is at most 4 to 6.
Do you have any suggestions or maybe ideas what could be wrong? Would really appreciate some input. For further questions, please let me know. Here is the Circuit and a picture of the Layout:
Ref 1 and 2 are connected to each other and to an external voltage reference IC of 2.5V ( which delivers 2.499V)
