poida
![](uploads/poida/Avatar_2023-04-20_235308.jpg) Guru
![](forum_images/4_star_rating.gif) Joined: 02/02/2017 Location: AustraliaPosts: 1404 |
Posted: 02:01am 07 Jun 2023 |
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the 4 pin versions drive the output relative to the ref pin
I use one for a current sensor with the inductor testing. It's so easy to use the output and ref pin since I put the CRO lead on one and the earth clip on the other and if the output is inverted I just swap the pins.
I think there is little output between ground and output in the case of the 4 pin versions |