[ List Subjects ][ Current Board ][ Post Message ]
Subject: Re: Oscilloscope purchasing
[ View Followups ][ Post Followup ]
Date: 10/27/00 at 7:27 PM
Posted by: Ray
In Reply to: Oscilloscope purchasing posted by Jim on 10/25/00 at 9:07 PM:
Rule of Thumb: (Rise Time)(Banwidth)=.35 so 20mHz has a rise time of (.35/20)*10^-6=17.5nsec. Pulses shorter than this will get severly distorted.
One can generate refinements and exceptions to this but don't bother.
As to your application; it depends:):) Harry Truman said the only thing he wanted was a "one handed Economist" (i.e. one this hand blah... on the other hand bleh...)
Your SCR might fire off if exposed to transients shorter than this; although the current ones might have protection. It has been quite a few years so I don't remember the protection circuits that will cure this (if it exists).
I think that this is about your only obvious problem that might occur. Of course I don't know about the rest of your application.
I will let you know if anything else occurs to me.
Post a Follow-up: