Is there any problem in adding hysteresis externally from OUTA to INA+? Is there a maximum recommended for stable operation?
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Wayne,
There is no issue with adding hysteresis. We do not have a specific limit to add but be sure that testing is done across operating conditions so that the accuracy is still maintained to fit the application requirements.
Please refer to "Adding Hysteresis to Voltage Supervisor" app note for a more detailed analysis of adding hysteresis. http://www.ti.com/lit/an/slva360/slva360.pdf
Please let me know if you have any other questions. Thank you!
-Michael