General > General Technical Chat
Why do you think there aren't more "good" USB oscilloscopes?
thm_w:
Good low end option is dslogic: https://www.dreamsourcelab.com/product/dscope-series/
and no its not great value for money, likely due to the mentioned reason of low market volume. Could a major brand come out with a killer value USB scope? yeah. Would they ever do it? Probably not.
--- Quote from: David Aurora on February 16, 2023, 09:57:33 pm ---Has anyone here gotten some time on one of these yet?
https://digilent.com/shop/analog-discovery-pro-3000-series-portable-high-resolution-mixed-signal-oscilloscopes/
I'd be really keen to see what they're like given how much I already like their software with my AD2
--- End quote ---
55MHz bandwidth, and 100MS/s, for $1200. Very very few people on this forum would want something like that. Unless it was for a specific logging task that required 14-bit.
Aleksorsist:
10 gbps USB 3 Gen 2x1 (awful naming aside) would actually be enough to stream the data from any of the 1000 series 8-bit 1GSPS (8gbps) scopes in real time. Go with PCIe through Thunderbolt/USB4 and you get 40 gbps to play with, plus DMA to make storing and processing all that data much easier on the host system.
As for what is "good", I'd agree that the 5000 series picoscope is a good USB scope, but it's price point is not remotely close to being competitive with sigilent/rigol. I don't know how much of it is markup versus the BOM cost for it being high, but it very likely uses the hmcad1520 which isn't really that expensive for what it is.
Someone:
Tek 5 and 6 series low profile
https://www.tek.com/en/products/oscilloscopes/high-speed-digitizers/5-series-mso-low-profile
https://www.tek.com/en/products/oscilloscopes/high-speed-digitizers/6-series-mso-low-profile
Siglent SDS6000L
https://siglentna.com/digital-oscilloscopes/sds6000l-low-profile-digital-storage-oscilloscope/
Rigol DS8000-R
https://www.rigol.eu/products/oscillosopes/DS8000.html
Keysight U270xA or P924xA
https://www.keysight.com/zz/en/product/U2702A/usb-modular-oscilloscope-200mhz.html
https://www.keysight.com/zz/en/product/P9243A/streamline-series-usb-oscilloscope-1-ghz.html
thats before PXI PCI or LXI chassis, which have even more options....
Most of the majors have USB scopes.
--- Quote from: TomKatt on February 16, 2023, 11:18:08 am ---So why do you think there aren't more USB scopes on the market?
--- End quote ---
Because there isn't the demand you imagine there to be.
David Aurora:
--- Quote from: EEVblog on February 16, 2023, 10:40:28 pm ---
--- Quote from: David Aurora on February 16, 2023, 09:57:33 pm ---Has anyone here gotten some time on one of these yet?
https://digilent.com/shop/analog-discovery-pro-3000-series-portable-high-resolution-mixed-signal-oscilloscopes/
I'd be really keen to see what they're like given how much I already like their software with my AD2
--- End quote ---
The obvious limitation here is the lack of a proper analog front end, it's just a single fixed voltage range. Sure it's got 14bit, but it ain't in the same class a bench scope. And only 100MS/s
Does look very nice though if you have specific needs.
Is it the same software?
--- End quote ---
Really? I hadn't looked deep enough to catch that, bummer
Yeah same software
I wonder if they'll be adding anything else to the range in the near future. They do seem super active on the software side of things
tautech:
--- Quote from: Someone on February 17, 2023, 12:08:48 am ---Siglent SDS6000L
https://siglentna.com/digital-oscilloscopes/sds6000l-low-profile-digital-storage-oscilloscope/
--- End quote ---
Is hardly a USB scope. :P
Instead it's a remote acquisition system with 4 or 8 channels and multiple units can be remotely linked and synced for up to 512 channels.
It might look like a USB scope but that's all as you connect a keyboard, mouse, mains and a display to it however it can also mimic a USB scope in that you can use a PC to drive it like any scope with webserver capability.
https://www.eevblog.com/forum/testgear/siglent-sds6000l-2ghz-12bit-8-ch-(china-only)/
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version