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INA196: Data sheet unclarity

Josef Knauseder
Prodigy 10 points
Part Number: INA196
Other Parts Discussed in Thread: INA195

Hi there !

In the datasheet, under Absolute Maximum Ratings the input voltage is given with -+/ 18Volts. How can the common mode voltage then be -16/ + 80 volts ?

Thank You !

  • 0
    TI__Expert 4915 points

    Hi Joseph,

    Thank you for using the E2E Forums.

    Our manufacturing process allows us to have common mode voltages that exceed the device supply. This is a very common requirement, where the parts are fed at a lower voltage (as low as 3V3 to interface with an mcu or other logic) but are required to measure voltages on a higher voltage bus.

    So to clarify, these values are correct.

  • 0 in reply to Carlos Silva85
    TI__Expert 4915 points

    Hi Joseph.

    Just an update to my previous reply, as I might have misunderstood your original question:

    I have verified and for this particular device (INA195), there is indeed a error or the datasheet, since the AMR for inputs are stated as to -18 to 18V.

    Table 7.1 should look as below:

    Thank you for noting this. I will ask our team to correct the datasheet.