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Teledyne Lecroy Brand New 65Ghz 12bit Monster Scope

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tszaboo:
Lets get a 65 Ghz power meter, a 26GHz spectrum analyzer and a 1GHz scope.
Nah, too much bench space, let's just get a 65GHz scope.

tv84:

--- Quote from: temperance on October 12, 2023, 10:55:01 pm ---So it wont take long before the kidney prices of human origin will see a significant price drop.

--- End quote ---

Damn. We'll need to increase our crowd source pool!

Sighound36:

--- Quote from: hpw on October 13, 2023, 08:11:15 am ---

Well, well... I would like to see the idle noise up to highest freq. resolution as the ENOB too.

While this would show how Siglent & Rigol is able in this regard as may LeCroy sets the new base performance.

Also nice to see, that the Bodnar 30pS switcher shows some under/overshoots :D

Hp

--- End quote ---

Your point on ENOB are well valid and will be valid against scopes in the same catagory where benchmarking would be of interest to any perspective purchaser agree entirely. I know this unit compares more than favorably against other highly regarded devices in this sector of the market. Would suggest these points will become clearer in the fullness of time.

If you are looking to capture much lower speed signals with higher precision then there are a number of 12 bit scopes from Rigol / Siglent and R&S now which perform very well indeed in the sub 1Ghz portion of the market. Producing consistant, repeatable low noise measurments itsn't just 12 ADC's it will be the  complete front end must be of matching arcitectural complimentry circurity as well imho

I missed Leo (Bodnar) by around thirty minutes, the joys of timing  :-DD the scope 33Ghz BW gives a rise time of 11pS I really didn't deleve to deep in that particular measurment, I just felt the forums users may appreciate looking at an incredabilly fast rising edge, as outside of The signal path I feel they not so common for many everyday EE folks.

Cost wise the Keysight UXR 25Ghz unit starts around $480K, I believe the WM8000HD 20Ghz starts around $270K in the USA

hpw:

--- Quote from: Sighound36 on October 13, 2023, 10:48:07 am ---If you are looking to capture much lower speed signals with higher precision then there are a number of 12 bit scopes from Rigol / Siglent and R&S now which perform very well indeed in the sub 1Ghz portion of the market.

--- End quote ---

This metrics as on Rigol DH04000 model:

DHO4000

Ultra-low noise floor at 18 μVrms

• 12-bit vertical resolution[1]
• 200/400/800 MHz
• Up to 4 GSa/s real-time sample rate
• Max. memory depth: 500 Mpts (optional)
• Min. vertical sensitivity: 100 μV/div

so we will get about 20% noise on 100 uV resolution  :-DD

As I like to measure residual LDO switching noise on ADC / DAC as in xxMHz :phew:

As it comes into mind, WM, SDA (as 8 bit) requires some averaging otherwise noise very high

Sighound36:
The lowest noise I have recorded on a WS HD 200Mhz is between 27-29uV with an open port 50 Ohms and NO BW filter applied and 1mV VTB after a solid 40 minutes of warm up, the best I've seen on a 12 bit siglent is around 34uV using the same settings. The rigol requires a few tricks to achieve its printed specifications  including the use of a BW filter which is automatically set when you select the 500uV VTB from memory? As my father would say, they cheat fair  :-DD As with all things Gaelic , "Like the Murphy's, I'm not bitter"  8)

As I previously mentioned you are not going to purchase a Wavemaster HD or similar competitor to perform this type of measurment, you would select something more appropreiate for the task in hand. Hence why we use WavesurferHD's/Picotech/Siglent and Rigol 12 bit units in the main lab.

Many times now I have suggested on this forum that 12 bit affordability is now mainstream which is a good thing all round. More choice to more EE's who would really like more accuracy in their day to day abili to make sure their projects are producing the designed parameters etc.

They are more 12 bit units on the way next up will be R&S MX5 don't expect much change out of a starting point of 40K, that has 6 bits of SW filtering on top of the 12 bit ADC.

Exactly the same happened when 8 bits became the norm, although at that point no Rigol or Siglent.

People will gravitate to whatever platform / format works for them in a given set of applications. It's just our applications require more than 16Ghz of BW so like any company looking to expand its R&D facilities into 5/6G onwards these scopes & analysers will be an essential tool.

At home I use a Wavesurfer & Wavepro HD both very capable products as are Rigol/Siglent/Keysight and R&S.

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