Very fast oscilloscopes
in [Design]
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From: Joerg on 29 Apr 2010 15:04 John Larkin wrote: > On Thu, 29 Apr 2010 10:38:53 -0700, "Joel Koltner" > <zapwireDASHgroups(a)yahoo.com> wrote: > >> "Phil Hobbs" <pcdhSpamMeSenseless(a)electrooptical.net> wrote in message >> news:4BD9C26E.8050104(a)electrooptical.net... >>> Their 32 GHz ones are nearly $300k. You can get a 50 GHz 11801C with lots >>> of good modules for a couple of percent of that number. >> Thanks Phil, I found a price list in their product announcement here: >> http://www.agilent.com/about/newsroom/presrel/2010/27apr-em10050.html >> >> I wouldn't be surprised if the *probes* were in the high-four digits either -- >> maybe even hitting $10k+! > > > $30K for the new Agilent probe, I've been told. > > New car or new probe? > Maybe both? http://www.edmunds.com/ford/probe/1996/picturearchive.html -- SCNR, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: tlbs101 on 29 Apr 2010 17:19 On Apr 29, 10:52 am, "Joel Koltner" <zapwireDASHgro...(a)yahoo.com> wrote: > I bet Agilent wants a pretty penny for their new 32GHz real-time scopes:http://cp.literature.agilent.com/litweb/pdf/5990-5271EN.pdf > > And to think that it was only ~20 years ago that a Tek 11802 with the SD-24 > (24GHz) sampling head -- that samples at all of 100kHz -- was the hotest > ticket... now available on eBay for some single-digit percentage of the > original price... > > ---Joel I worked for EG&G Energy Measurements in the 1980's, up to 1997. Another EG&G organization near Boston built ultra fast scopes for use in underground nuclear testing. They had their corporate knowledge of how to build fast real-time scopes but the limit of their expertise was about; 10 GHz bandwidth, rise-times of less than 350 ps, non- gaussian. Then, in the early 1990's they hired a guy who applied electron LINAC techniques for the beam steering and they broke the 10 GHz barrier. I got to see one of their new creations in 1995. They took it to the Naval Standards Lab (now NIST) and it responded in real-time to the maximum frequency the lab could generate: 54 GHz; with a sensible, measureable display. We hooked it up to a Berkely super fast pulse generator with a claim of sub-100 ps rise time, and between the scope's rise-time and the pulse generator's rise-time, measured 165 ps. Needless to say, I was very impressed. I understand they only made 2 of these, but I left to work for another company shortly, thereafter, so I could't keep up with the latest internal news, Tom Pounds
From: Nico Coesel on 29 Apr 2010 17:58 "Joel Koltner" <zapwireDASHgroups(a)yahoo.com> wrote: >"Phil Hobbs" <pcdhSpamMeSenseless(a)electrooptical.net> wrote in message >news:4BD9C26E.8050104(a)electrooptical.net... >> Their 32 GHz ones are nearly $300k. You can get a 50 GHz 11801C with lots >> of good modules for a couple of percent of that number. > >Thanks Phil, I found a price list in their product announcement here: >http://www.agilent.com/about/newsroom/presrel/2010/27apr-em10050.html > >I wouldn't be surprised if the *probes* were in the high-four digits either -- >maybe even hitting $10k+! > >It is kinda ironic that the 1st page there shows an eye diagram where you >likely could get by just fine with a sampling scope... > >...but I do expect it's pretty cool to see, e.g., a non-repetitive high-speed >bitstream like SATA or PCI-E or similar at, say, 6Gbps go marching by... For what purpose? You would need tons of storage to capture some meaningfull information. Not to mention trigger algorithms. If you have signal integrity issues you could input a continuous square wave and check the eye diagram with an 'ordinary' sampling scope. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico(a)nctdevpuntnl (punt=.) --------------------------------------------------------------
From: Robert Baer on 29 Apr 2010 18:25 Tim Wescott wrote: > Joel Koltner wrote: >> I bet Agilent wants a pretty penny for their new 32GHz real-time >> scopes: http://cp.literature.agilent.com/litweb/pdf/5990-5271EN.pdf >> >> And to think that it was only ~20 years ago that a Tek 11802 with the >> SD-24 (24GHz) sampling head -- that samples at all of 100kHz -- was >> the hotest ticket... now available on eBay for some single-digit >> percentage of the original price... >> >> ---Joel >> > Bleeding edge equipment gets old the fastest. > "Real time"?? Does that mean it can do single shot events giving a continuous (analog) trace of the event?
From: Robert Baer on 29 Apr 2010 18:28
Joerg wrote: > Don Lancaster wrote: >> On 4/29/2010 9:52 AM, Joel Koltner wrote: >>> I bet Agilent wants a pretty penny for their new 32GHz real-time scopes: >>> http://cp.literature.agilent.com/litweb/pdf/5990-5271EN.pdf >>> >>> And to think that it was only ~20 years ago that a Tek 11802 with the >>> SD-24 (24GHz) sampling head -- that samples at all of 100kHz -- was the >>> hotest ticket... now available on eBay for some single-digit percentage >>> of the original price... >>> >>> ---Joel >>> >> >> >> The last decent oscilloscope HP built was the 130C. >> It has been steadily downhill ever since. >> >> Their idea of "trigger" was a horse. >> > > I said that once, in a rather grumpy way because the <censored> thing > wouldn't trigger. Turned out the guy standing next to me had been on the > design team of one of those ... whoops ... I wanted to vanish into the > next hole. > *NEVER* be ashamed of the truth and of facts. |