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Products => Test Equipment => Topic started by: Porama6400 on January 31, 2019, 09:23:51 am

Title: is x100 oscilloscope probe suitable for measure 5v digital circuit?
Post by: Porama6400 on January 31, 2019, 09:23:51 am

is x100 oscilloscope probe suitable for measure 5v digital circuit?
Are there any drawback doing that?

Title: Re: is x100 oscilloscope probe suitable for measure 5v digital circuit?
Post by: Porama6400 on January 31, 2019, 09:35:08 am

Do high voltage probe got faster respond time?
If I just want to see brief voltage spike, is it going to work?

Title: Re: is x100 oscilloscope probe suitable for measure 5v digital circuit?
Post by: Hydron on January 31, 2019, 12:10:40 pm

I'd normally recommend 10X probes for logic level stuff for noise reasons, but sometimes a 100X probe can be very useful to poke at sensitive nodes - they typically have significantly less capacitance than a 10X probe so disturb the circuit you're measuring less.
For general use a 10X probe is cheap enough that it's probably best to get some.

Title: Re: is x100 oscilloscope probe suitable for measure 5v digital circuit?
Post by: Fungus on January 31, 2019, 02:03:43 pm

Quote from: Porama6400 on January 31, 2019, 09:35:08 am

If I just want to see brief voltage spike, is it going to work?

Yes.

Title: Re: is x100 oscilloscope probe suitable for measure 5v digital circuit?
Post by: Porama6400 on February 01, 2019, 10:58:23 am

So x100 probe will be more noisy but will have have lower interference?

Title: Re: is x100 oscilloscope probe suitable for measure 5v digital circuit?
Post by: Fungus on February 01, 2019, 01:50:27 pm

Quote from: Porama6400 on February 01, 2019, 10:58:23 am

So x100 probe will be more noisy but will have have lower interference?

lower capacitance.

Title: Re: is x100 oscilloscope probe suitable for measure 5v digital circuit?
Post by: Porama6400 on February 01, 2019, 02:39:45 pm

oh yea, my bad  :P