mtino Publish time 2023-4-12 08:05:02

6254BD reduces measured V if Time/DIV < 500ns

Edited by mtino at 2023-4-22 07:39

Hello,

I recently acquired a 6254BD USB scope.
The issue I have is when I select a Time/DIV smaller than 500ns, the measured voltage is reduced. For instance if a 5.0V is at the input, if 200ns is selected, the voltage reported is 4.2V!!!

It is supposed this version is up to 250MHZ I was not expecting to have this big accuracy error.

Please provide a fix to use it properly.

I want to measure a clock signalrise/ fall time, with the reduced value of the TOP voltage, I do not know how accurate is the gotten results.

BTW, what levels for rise/fall time are used? 20/80 ,10/90?   

Thanks in advance for your support


mtino Publish time 2023-4-20 11:19:50

Hello,
Any comments here?
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