Analog Discovery 2

Anyone else have one of these?

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I bought one a couple of months ago, and seldom use my expensive 'scope now. The limited input gain is made up for by the 14 bit ADC, it does oscilloscope, waveform generator, network analyser, spectrum analyser and more and the software is pretty intuitive. Only two (differential) channels, but has trigger inputs too.

It takes up very little room and if 100MS/s is fast enough it's an excellent tool. Just a pity it's not in a box - I might fix that if I can get a round tuit.

Cheers

--
Clive
Reply to
Clive Arthur
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Looks cool for a student or someone where minimal size/portability is the main concern, but at $279 you can get a full-blown DSO with legit

50MHz bandwidth for not much more money.

The network analyzer feature is intriguing; I don't think anyone made an inexpensive low-freq one and the boatanchors that go up to hundreds of MHz even used aren't particularly cheap for a contractor or small business

Reply to
bitrex

Does it have a Linux development kit? I don't think it'll do what I'd want it for, namely a 100-MS/s dynamic signal analyzer, because it's only got one ADC, but if it has simultaneous sampling, it might be quite attractive.

Looks nice for a DSP lab course.

Cheers

Phil Hobbs

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Dr Philip C D Hobbs 
Principal Consultant 
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Reply to
Phil Hobbs

Only 8 bits though. For DSP things the difference between 8 and 14 bits is pretty startling.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs 
Principal Consultant 
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Reply to
Phil Hobbs

The ADC is a dual channel AD9648.

Cheers

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Clive
Reply to
Clive Arthur

Looks interesting. 'scope inputs are differential, that's nice. and 14 bit! From national instruments and yet I heard not one 'lab view' blurb. (which is a good thing IMHO.)

George H.

Reply to
George Herold

Ya at the 300-ish price point anything is going to be a compromise between whether you prefer bit depth or sample rate. Looks like the Discovery is using a single 14-bit AD9648; by comparison e.g. a Rigol DS1052E in single channel mode interleaves the output of 10 8-bit AD9288s clocked at 100MHz

Reply to
bitrex

10 sections, rather as I believe the AD9288 is a dual
Reply to
bitrex

Well that ought to work then. Cool. Now all I have to do is reproduce the software of my HP 35665A in my spare time. ;)

Cheers

Phil Hobbs

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Dr Philip C D Hobbs 
Principal Consultant 
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Reply to
Phil Hobbs

It depends on what you are thinking of by a "linux development kit".

The last time I looked there was a linux native client, and it could be controlled/extended by scripts written in JavaScript. I pegged it as being suitable for homebrew special-purpose instruments and homebrew ATE class applications, possibly more.

The low-memory depth 3.3V 100MS/s digital pattern generator outputs and "logic analyser" inputs might conceivably be turned into auxiliary general purpose i/o.

Note that I haven't tried any of that.

Reply to
Tom Gardner

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there's also

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for roughly the same price

afaict code and hdl is opens source, the schematic is quite open source but close enough

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Reply to
Lasse Langwadt Christensen

To be totally retro you'd also have to emulate a TUNGGG sound and a brief dim of the ceiling lights when turning it on, like with genuine boat anchor analyzers :-)

--
Regards, Joerg 

http://www.analogconsultants.com/
Reply to
Joerg

Opposite extreme: I'm redesigning some test sets that were originally deployed in 2002; the DUT is still in production. The original had a counter/timer, a DVM, a scope, and a cage full of VME modules. The new one will be one big custom PCB and one oscilloscope.

The 500 MHz Rigol that we use is a scope, a frequency counter, a time-interval counter, and is good enough to use as a DVM, testing power rails inside the DUT.

It will measure the time between two rising edges to 10s of picoseconds, and it seems to measure edge-edge jitter with a roughly

18 ps noise floor.
--
John Larkin         Highland Technology, Inc 
picosecond timing   precision measurement  
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Reply to
John Larkin

You'd need a black LED for that.

NT

Reply to
tabbypurr

Did you look at the RedPitaya guys?

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Pere

Reply to
o pere o

They don't say anything about data storage. If that's not important to them they can GFT.

Reply to
bloggs.fredbloggs.fred

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