Other Parts Discussed in Thread: INA240, INA149-EP, TINA-TI, INA149
Tool/software:
Hi expert,
My customer wants to use OPA4H014-SEP as a buffer between ADC and INA current sensor like below configuration.
And they found OPA there is a 1.26V DC at ouput without any input signal at IN+.
Here are the schematic their own.
R30, R34, R38, R42 is replace to 0 Ohm.
C49, C53, C57, C61 are remove.
Is there any suggestion why this situation happened?
How to verify the OPA function is okay?
Thanks.