Hi All,
I have built a simple working comparator circuit as shown below
View attachment comparator.bmp
IC1 is an LM358AN Op amp, the two 10K pots allow me to change the voltage at the two input pins with the two 100n caps to provide a bit of filtering.
the issue comes when I replace the LM358AN Op Amp with an LM393N Comparator IC, with the rest of the circuit the same I get a constant 0 Volts on the output, are there any changes that need to be made to the circuit when using a comparator IC when compared to an Op Amp?
I have double checked the pinning is the same between the two IC's and I have tried multiple LM393N IC's in case I had one faulty one, therefore I can only assume that there is something simple wrong with my circuit.
Any help or hints would be greatly appreciated.
I have built a simple working comparator circuit as shown below
View attachment comparator.bmp
IC1 is an LM358AN Op amp, the two 10K pots allow me to change the voltage at the two input pins with the two 100n caps to provide a bit of filtering.
the issue comes when I replace the LM358AN Op Amp with an LM393N Comparator IC, with the rest of the circuit the same I get a constant 0 Volts on the output, are there any changes that need to be made to the circuit when using a comparator IC when compared to an Op Amp?
I have double checked the pinning is the same between the two IC's and I have tried multiple LM393N IC's in case I had one faulty one, therefore I can only assume that there is something simple wrong with my circuit.
Any help or hints would be greatly appreciated.
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