Hi, I am testing TINA with INA321:
The vout should be 5 X 1mv (GAIN X Difference input) = 5mV, but voud = 19,6mV.
What is wrong?
INA321 Datasheet: http://www.ti.com/lit/gpn/ina321
Hello LaunchRed,
The device is trying to output 5mV. With a single supply the output can only swing to within 25mV (typical) of ground according to the datasheet. Try biasing the REF pin with at least 50mV and your output will be 50mV+(gain*Vdiff).
Regards,
Pete Semig
Precision Analog Applications
I found what you said here (page 3):
What is "Output Voltage Swing from Rail"? I am a beginner
Thanks for the help!
I understand, the output swing is the range of output with respect to the power suply.
The output can be between 0+50 mV and VCC-50mV (single suply)