Author Topic: New Rigol 16-bit function generators DG800/900 series  (Read 5263 times)

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Offline maxwell3e10

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New Rigol 16-bit function generators DG800/900 series
« on: September 12, 2018, 02:35:23 am »
It looks like Rigol released a new series of function generators with 16-bit vertical resolution. The models range from DG811 - 1 channel 10 MHz for $279 to DG992 - 2 channel 100 MHz for $1000.
DG822 -2 channel 25 MHz with 10 MHz square wave and 125 MSa/s for $329 might be the sweet spot.

I've been looking recently at high vertical resolution generators, so I am curious how the new Rigol ones would compare with SDG2042X and Keysight 33522B.
 

Offline Kuba_eM

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #1 on: September 12, 2018, 02:53:10 am »
but the look is like a horror movie ...
 
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Offline simone.pignatti

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #2 on: September 12, 2018, 02:57:03 am »
well, launch date is tomorrow September the 12th :)
DG800 and DG900 are entry level models not to compete with SDG2000X or 33522B.

DG800 data sheet
https://www.batterfly.com/PDF/RIGOL/DG8e9/DG800_Datasheet_EN.pdf

DG900 data sheet
https://www.batterfly.com/PDF/RIGOL/DG8e9/DG900_Datasheet_EN.pdf
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Offline maxwell3e10

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #3 on: September 12, 2018, 05:09:39 am »
DG800 and DG900 are entry level models not to compete with SDG2000X or 33522B.

They all have SiFi II/True Arb/TrueForm that is supposed to improve waveform fidelity and reduce jitter.
It would be interesting to compare their approaches to waveform interpolation and just the cleanliness of a sine wave on a spectrum analyzer. 

DG800 datasheet says 200 ps jitter or 5 ps jitter depending on the filter for arbitrary waveform. SDG2000X datasheet says 150 ps jitter, no additional filter. 33522B says 40 ps to 5 ps, depending on filter.
 

Online tautech

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #4 on: September 12, 2018, 05:52:45 am »
It looks like Rigol released a new series of function generators with 16-bit vertical resolution. The models range from DG811 - 1 channel 10 MHz for $279 to DG992 - 2 channel 100 MHz for $1000.
DG822 -2 channel 25 MHz with 10 MHz square wave and 125 MSa/s for $329 might be the sweet spot.


SDG1032X is 150 MSa, 14 bit and does square to 30 MHz for just a few $ more. SDG1062X goes to 60 MHz square wave.
SDG2042X is 1.2 GSa, 16 bit and does square wave to 25 MHz.
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Online blueskull

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #5 on: September 12, 2018, 06:00:57 am »
SDG2042X is 1.2 GSa, 16 bit and does square wave to 25 MHz.

Did you miss a zero?
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Online tautech

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #6 on: September 12, 2018, 06:07:14 am »
SDG2042X is 1.2 GSa, 16 bit and does square wave to 25 MHz.

Did you miss a zero?
Nope.
Sine is only 40 MHz on that model but for those that want to hack them it can be improved to 120 MHz (SDG2122X) but still square is 25 MHz.
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Online ogden

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #7 on: September 12, 2018, 06:56:02 am »
Booby prize of design awards goes to... Rigol 16-bit function generator!!!!

:palm:

Design with every new instrument is getting worse. They shall check mental health of designers and product decision makers ASAP.
 
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Offline blackdog

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #8 on: September 12, 2018, 07:13:43 am »
Hi,
For anyone who does not know yet, necessary for a good square wave representation, at least 10x more bandwidth is required than for a sinus.

So if the generator has a maximum sine frequency of 40MHz then at least 400MHZ bandwidth is needed from the DAC and the amplifier steps behind this.
For a really nice block reproduction I usually use 15x the bandwidth.

Yes i know, live sucks  :-DD

Do not forget to check the max output level, at the max Frequency of the generator, and get dissapointed (almost all generators have a  mutch lower output level at the higer frequency)

Kind regards,
Bram
 
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Online MikeP

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #9 on: September 12, 2018, 07:16:28 am »
 Total Harmonic Distortion[1] <0.075% (10 Hz to 20 kHz)
 It 's about -63dB.  :wtf:
 

Online Pinkus

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #10 on: September 12, 2018, 07:45:50 am »
Booby prize of design awards goes to... Rigol 16-bit function generator!!!!

:palm:

Design with every new instrument is getting worse. They shall check mental health of designers and product decision makers ASAP.
But you have to keep in mind that they designed the case so that the air can circulate, even if the device is next to or under other devices. That's why a fanless design was possible.
Thats: +1
Also: real power switch: +1

I do not mind the look of the back of a housing a lot, as long as the front (which I am seeing all the time and I am working with) is fine.

They still use different shapes of buttons, but I would be able to tolerate it here as (probably because of the lack of more buttons) the design is clear and not crowded. They could have done worse.

 

Offline EEVblog

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #11 on: September 12, 2018, 08:16:03 am »
Someone was thinking

 

Offline Daruosha

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #12 on: September 12, 2018, 08:46:03 am »
Booby prize of design awards goes to... Rigol 16-bit function generator!!!!

:palm:

Design with every new instrument is getting worse. They shall check mental health of designers and product decision makers ASAP.

Are these AWGs designed for gamers? Somebody please find the head designer and slap him as hard as possible in the face! WTF!! Look at the top of the unit in the datasheets.  |O :-DD

« Last Edit: September 12, 2018, 03:54:08 pm by Daruosha »
 

Offline thm_w

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #13 on: September 12, 2018, 09:08:31 am »
Are these AWGs are designed for gamers? Somebody please find the head designer and slap him as hard as possible in the face! WTF!! Look at the top of the unit in the datasheets.  |O :-DD

It looks a bit wild, but if something else is stacked on top (it seems like it is designed to accommodate this), then you won't even see the top.

Consider how often people here compare about fan noise for hobbyist instruments, it seems like they are catering directly to that audience. Of course this could be done without the wild stylings too.
 

Online DaJMasta

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #14 on: September 12, 2018, 09:39:49 am »
Fanless is great, crazy gaming PC design doesn't match anything on my bench.  I don't really think industrial equipment needs to look scifi (or have SciFi II tech  :-DD) or be super edgy.... at least no RGB lights.


Doesn't seem like incredible pricing, but it's about competitive and the waveform memory seems big, hopefully they have a lot of built in modes and patterns.


EDIT: oh actually the 800 series looks much more like a bit of test gear.  Maybe there's some LeCroy bench where the 900 fits in terms of color, at least, but the DG900 wouldn't fit next to their own brand new DS7000.
« Last Edit: September 12, 2018, 09:41:56 am by DaJMasta »
 

Offline bitseeker

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #15 on: September 12, 2018, 12:45:15 pm »
Wrong design for the market, but at least the buttons/labels all face the same direction (looking at you, DS7000!).
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Offline xrunner

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #16 on: September 12, 2018, 01:18:14 pm »
How can I set my coffee cup on top of that?  :(
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Online TurboTom

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #17 on: September 12, 2018, 03:23:11 pm »
How can I set my coffee cup on top of that?  :(

Have Rigol design a coffe cup ?   8)
 

Offline bitseeker

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #18 on: September 12, 2018, 03:28:21 pm »
 :-DD Good one, Tom. Maybe the gen will keep it warm for you, too — but only warm :P.
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Offline maxwell3e10

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #19 on: September 12, 2018, 04:10:04 pm »
So since it doesn't make any fan noise anymore, maybe searching for "noise DG822" in the future will instead reveal more results on how well the 16-bit ADC is working.
 

Online maukka

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #20 on: September 12, 2018, 04:19:25 pm »
One unlisted Youtube video on the product page:

 

Offline bitseeker

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #21 on: September 12, 2018, 04:26:30 pm »
Reminds me of the Flying Sub from the TV series, Voyage to the Bottom of the Sea.
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Offline MrW0lf

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #22 on: September 12, 2018, 04:37:24 pm »


Are they trying to fly under the bug radar with this new stealth design ::)
 

Online mikeselectricstuff

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #23 on: September 12, 2018, 06:04:12 pm »
If that tiny rocker switch is a real mains switch I can't see it lasting long
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Online mikeselectricstuff

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Re: New Rigol 16-bit function generators DG800/900 series
« Reply #24 on: September 12, 2018, 06:07:08 pm »
"seven bit 240MHz function generator".. I think they mean seven digit...
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