About a year ago, I built a circuit whose output I plugged into a comparator, and the comparator's other input was connected to a pot configured as a voltage divider. The intention of the circuit was to alert an MCU when a certain amount of current exceeds the pot's adjustment, and the circuit has been working beautifully ever since.
However, for my second build I had to replace the LM193N that I originally used on the first version because that chip has been declared obsolete. The one I'm using now is the LM2903P, and of course it's pin compatible and has similar characteristics with the previous one. I am, however, noticing differences in their behavior. Mainly in their hysteresis, if I'm correct. The LM193N seems to have a larger one, and that proved beneficial for my purpose. But the LM2903P seems to be a bit too sensitive, and runs a little unstable, or jittery, compared to the other one, for lack of a better word.
Questions, What would the main reason for their differences in behavior be? ... And is there a better replacement for the LM193N than the one I chose for this purpose?
However, for my second build I had to replace the LM193N that I originally used on the first version because that chip has been declared obsolete. The one I'm using now is the LM2903P, and of course it's pin compatible and has similar characteristics with the previous one. I am, however, noticing differences in their behavior. Mainly in their hysteresis, if I'm correct. The LM193N seems to have a larger one, and that proved beneficial for my purpose. But the LM2903P seems to be a bit too sensitive, and runs a little unstable, or jittery, compared to the other one, for lack of a better word.
Questions, What would the main reason for their differences in behavior be? ... And is there a better replacement for the LM193N than the one I chose for this purpose?
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