New BUF802 the ultimative DIY Active Probe Opamp??

[Noy]

Hey guys,
since some months i planned to do a USB powered / qfn using respin of branadics OPA659 Active Probe design for my Rigol 5k..:

http://welecw2000a.sourceforge.net/docs/Hardware/Aktiver_Tastkopf_mit_OPA659.pdf

Yesterday i read the TI newsletter about the new BUF802:
https://www.ti.com/lit/ds/symlink/buf802.pdf?ts=1643347428244&ref_url=https%253A%252F%252Fwww.google.com%252F

And tought "should i better do a new design with this nice new device (BUF802)"?

One thing i cannot really understand is :

Should i use it in BF mode or the "pseudo CL" BF mode (Fig:8-11) or in real CL mode..? Do i need the CL mode for an active probe for my needs? Do i care about that DC offset or should i simple only use AC coupled mode of my scope? Or can i simple adjust the dc offset with an external pot before i do a measurment?
I want a 350MHz maybe 500MHz active probe to probe RGMII / SDIO Signals.. i think the BW of the scope is enough (for most of my signals) but i have the issue that the passive probes  aren't high impedance enough with >100MHz signals which will result in more blurred signal integrity.. thats why i want an DIY active probe..

Which precesion opamp should i use if i want go the CL way? The suggested OPA140A or are there any better Opamp (which are availabel currently.. ;-))

[mawyatt]

That's a nifty new IC, thanks for pointing to this

For just a Hi Z probe for higher frequency use, the BF should suffice since you can just AC couple the output. Think CL mode would be for something like a scope front end where you want to cover very low frequencies and DC, but for a probe this is likely not required.

Best,