Multiple TA058 from single supply

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bitbanger
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Joined: Wed Dec 18, 2019 10:06 pm

Multiple TA058 from single supply

Post by bitbanger » Wed Dec 18, 2019 10:11 pm

Hi -
We are using 4x TA058 differential probes into rackmounted oscilloscope for ATE application.

Must the DC supplies for each adaptor be isolated? Or, can we power all four probes from a single supply (of sufficient rating) with no impact to performance/ground loop issue? Finding room for four power bricks are not convenient.

I confirmed my suspicion that the DC input jack ground is connected to BNC shell, so I have to assume one supply is fine, (because all supply input grounds would be tied to earth/chassis through oscilloscope anyway), but want to double check first.

Thanks!

Gerry
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Re: Multiple TA058 from single supply

Post by Gerry » Fri Dec 20, 2019 9:35 am

Hi bitbanger ,

Yes, as long as the supply can provide a constant voltage at the combined required current level, you can power all probes off of the same supply (without any grounding issues).

Regards,

Gerry
Gerry
Technical Specialist

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