>You must be reading a different datasheet than I am becuase
>mine says this control simply allows the threshold to be
>shifted but the amount of hysteresis remains at about 0.25V

You could increase the hysteresis by adding further series resistance to the
input, thereby increasing the 3k input impedance. The hystersis will be set
by the ratio of the total input resistance and the feedback resistance.
However other items in the spec would go somewhat out the window I suspect.

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