Comparator Dip
Is 1mv too small to sense with a comparator circuit on a breadboard?
I am wiring a circuit up on a breadboard with a comparator dip and I am wondering if 1mv is too small of a signal to expect to be able to sense. How low can I expect to go before running into noise issues ? This circuit is rse not differential input.
It depends on the comparator circuit that you are using; but, with the majority of comparator circuits yes 1mV is too small of a signal to reliably detect using a comparator.
With a common comparator like the LM2901, if you have a very steady compare voltage, then you can probably detect a 10mV input signal in an ideal environment (room temp., low power supply ripple, etc). Anything lower than 10mV you probably cannot detect with a common comparator circuit. There are some more top of the line comparator circuits which are better.
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comparator dip