[SI-LIST] Re: Probe impedance effect at high frequency
- From: Hal Murray <hmurray@xxxxxxxxxxxxxxx>
- To: ravivarma_4444@xxxxxxxxx
- Date: Thu, 16 Mar 2006 23:50:27 -0800
> But if you want to probe the power rails to look at the noise
> characteristic better to use a high impedance probe.
Why?
Why not go direct with 50 ohm coax and maybe a DC blocking cap? There isn't
going to be any problem with the scope loading down the signal.
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