Why would ther be a ground pin on opamps??
You have inputs, output, power supply. All these are referenced to ground.
Now I see you changed the question - you should also change the thread title to not mislead people!
I don't really understand your new question. Ground is normally the reference for all signals as well as the supply.
Jan
You have inputs, output, power supply. All these are referenced to ground.
Now I see you changed the question - you should also change the thread title to not mislead people!
I don't really understand your new question. Ground is normally the reference for all signals as well as the supply.
Jan
Opamps don't have a ground pin and the use of ground on dual rail devices is that that's where the signal is referenced to.
A comparator has a ground pin, at least a pin that can be grounded, to interface with logic circuits that are referenced to ground.
A comparator has a reference pin that can be grounded if you want ground to be the reference...
Jan
Jan
Remember that a multimeter always has two probes. The meter displays the voltage between the two points.
You can't have 'a' voltage on a pin, it's always between two points.
So there is always a common reference point which we normally call 'ground' but that's just a convention.
We could have called it pupukaka and nothing would change in the circuit operation.
Jan
You can't have 'a' voltage on a pin, it's always between two points.
So there is always a common reference point which we normally call 'ground' but that's just a convention.
We could have called it pupukaka and nothing would change in the circuit operation.
Jan
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