LM2901 with one input outside the input common mode range

[JSimo.19]

In the data sheet for TSX339 it says in chapter 6.1:

 "The output state is guaranteed as long as one input remains within the common mode

input voltage range (defined in the operating conditions table), and the other input remains

between -0.3 V and 16 V (meaning that one input can be driven above VCC+)."

Is the same true for LM2901, i.e. one input within the common mode input voltage range and the other input between -0.3 V and 36 V?

[MikeDB]

I believe so yes.

[JSimo.19]

Thanks for answering but I would not select this circuit though until someone from ST says that this is really the case.

[MikeDB]

Select which - the TSX339 or the LM2901 ? The LM2901 is a generic part from numerous manufacturers and it was this part your question seemed to be addressing.

[JSimo.19]

The circuit I would like to use is the LM2901 from ST if I can trust it only needs one of the input pins to be inside the specified common mode range and still have the right "result" on the output pin

[MikeDB]

Well as it's a generic part I doubt ST even designed it - they probably just copied the original and that was forty years ago so no-one will give any guarantees. Why not play safe and use resistive dividers on both pins to bring the voltages well within the rail voltages ?

[JSimo.19]

I see I had missed that this is already guaranteed in note 4 below table 3.