[SI-LIST] Re: Low Load Probe Suggestions
- From: "Chris Padilla \(cpad\)" <cpad@xxxxxxxxx>
- To: <Mark.Randol@xxxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Wed, 12 Sep 2007 12:36:21 -0700
Yes, have a look at GigaProbes (http://gigaprobes.com/) although they
are meant for 50-ohm systems--not exactly what you are asking but
thought I'd toss them out there.
Cheers,
Chris Padilla
Cisco Systems
San Jose, CA=20
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Mark Randol
Sent: Wednesday, September 12, 2007 11:40 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Low Load Probe Suggestions
I know about the Agilent and Tek probes, and yes to update to the latest
and greatest I need to do a little homework. However...
Mostly I'm wondering if any of you have run across other vendors out
there making interesting probe products.
--
Mark Randol, RF Evaluation & Application Engineer ON Semiconductor
901 S. Mopac Expressway
Barton Oaks 4, Suite 343
Austin, TX 78746
512-329-5640 (voice), 512-329-8151 (FAX) =3D20 =3D20
> -----Original Message-----
> From: olaney@xxxxxxxx [mailto:olaney@xxxxxxxx]=3D20
> Sent: Wednesday, September 12, 2007 1:08 PM
> To: Mark Randol
> Cc: si-list@xxxxxxxxxxxxx
> Subject: Re: [SI-LIST] Low Load Probe Suggestions =3D20 For input=20
>capacitance that low, you need a FET probe like the=3D20 Tek =
P6245.=3D20 =20
>Do your homework at the Tek and Agilent websites and I'm sure=3D20 =20
>you'll find what you want.
>=3D20
> Orin
> =3D20
> On Wed, 12 Sep 2007 10:09:33 -0700 "Mark Randol"=3D20 =20
><Mark.Randol@xxxxxxxxxx>
> writes:
> > I realize this is like asking gear heads what motor oil=3D20
> they prefer,=3D20
> > but for low loading what probes do you prefer? I know what=3D20
> I've used,=3D20
> > but just wondering what else might be available.
> >=3D20
> > I'd prefer <1pF capacitance and at least 100kohm resistance. =3D20 =20
> >Bandwidth up to at least 500MHz, preferably into GHz. Low=20
> >frequency=3D20
> should push=3D20
> > towards 10kHz. Tip voltages typically <5V, almost always <15V.
> > Some
> > wiggle room is allowed in the 'specs'.
> >=3D20
> > Regards,
> > --
> > Mark Randol, RF Evaluation & Application Engineer ON Semiconductor
> > 901 S. Mopac Expressway
> > Barton Oaks 4, Suite 343
> > Austin, TX 78746
> > 512-329-5640 (voice), 512-329-8151 (FAX) =3D3D20 =3D3D20 =3D20
> > > -----Original Message-----
> > > From: si-list-bounce@xxxxxxxxxxxxx=3D3D20 =3D20=20
> > >[mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of Doug Smith
> > > Sent: Wednesday, September 12, 2007 1:30 AM
> > > To: emc-pstc; SI-List
> > > Subject: [SI-LIST] Fluorescent light noise =3D3D20 Hi Everyone, =
=3D
=3D3D20 =3D20
> > >For years the electronic fluorescent light over the table I=3D3D20 =
=3D
do=3D20
> > >many of my experiments has been putting "fuzz" in some=3D3D20 =20
> > >scope=3D20 measurements. So, I decided to measure what was =
going=3D3D20
> > >on. =3D
This=3D20
> > >month's Technical Tidbit on my site is:
> > >=3D3D20
> > > Abstract: Electronic fluorescent lights are capable of=3D3D20 =
=3D20=20
> > >generating significant EMI. The nature of the EMI=3D20
> resulting=3D3D20 from=3D20
> > >internal switching used by such a light is presented.=3D3D20 =
The=3D20=20
> > >amplitudes measured are significant and could affect high=3D3D20 =
=3D20=20
> > >impedance analog circuits.
> > >=3D3D20
> > > The results are surprising in the amplitude observed at=3D20
> 48=3D3D20 kHz.=3D20
> > >Go to http://emcesd.com . The picture of the scope=3D3D20 probe =
and
> > >=3D
> > >fluorescent light is the link to the article.
> > >=3D3D20
> > > Doug
> > > --
> > > -------------------------------------------------------
> > > ___ _ Doug Smith
> > > \ / ) P.O. Box 1457
> > > =
=3D3D3D=3D3D3D=3D3D3D=3D3D3D=3D3D3D=3D3D3D=3D3D3D=3D3D3D=3D3D3D =
Los
=3D
Gatos, CA=3D20
> > 95031-1457
> > > _ / \ / \ _ TEL/FAX: 408-356-4186/358-3799
> > > / /\ \ ] / /\ \ Mobile: 408-858-4528
> > > | q-----( ) | o | Email: doug@xxxxxxxxxx
> > > \ _ / ] \ _ / Website: http://www.dsmith.org
> > > -------------------------------------------------------
> > >=3D3D20
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