Oscope reference Pin

#1 · May 12, 2025, 2:25 am

What is the function or purpose of the reference pin?

Is is a fixed standard voltage value to be used as an output?

Does it have any rellavence to ground reference?

#2 · May 13, 2025, 1:56 am

The reference pin of the scope is an input pin.

It is used when one likes to display the voltage between two nodes instead of between a node and ground.

In this case, one of the two nodes could be assumed as being the reference one for the scope by connecting it to its reference pin.

Hope this helps.

#3 · June 1, 2025, 1:50 pm

Thanks for the response.

So it looks like it is a way to simulate a non grounded differential scope input.