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Siglent SPD3303D review

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ScottyAU:
Unless i'm doing it wrong (which is entirely possible) - yep!

jimjam:

--- Quote from: ScottyAU on June 26, 2014, 11:47:31 am ---Unless i'm doing it wrong (which is entirely possible) - yep!

--- End quote ---
So much for that.... :(

I guess it's still better than Rigol DP832:
https://www.eevblog.com/forum/testgear/found-bug-in-rigols-dp832/msg348106/#msg348106

ScottyAU:
That's only on a  cold boot - turning the whole supply on.

The channel on/off does't spike.

Shorting the output does a little.

Frank i'd be interested in your thoughts mate if you read this - or Siglent.

FrankBuss:
The 1 V overshoot after the short is more than twice as much as I measured, as you can see here: https://www.eevblog.com/forum/testgear/siglent-spd3303d-review/msg299246/#msg299246 Still better than without the fix, which had 7 V overshoots (so up to 12 V), so I guess you have a new version. I wouldn't care about it, it is below absolute maximum limits of nearly all attached 5 V electronics, like old TTL ICs, or an Arduino.

Can you compare it with ch1 and ch2? If there are no overshoots, you can be sure that it is not your measurement setup, like ground loop, impedance mismatch (but this is unlikely with 1 ms per division), to long cables etc.

But it is strange that you have some voltage on cold power on, I don't see this on my patched device.

nowlan:
would 1-1.5v kill anything though?

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