Re: Fast sampler

On Wed, 5 Mar 2025 18:20:47 -0500, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

Hi, All,
>
Late last year we did a fast sampler/TDR with nice clean 60 ps edges.
>
We're gearing up to actually sell them, so I did a short technical
writeup on the design, which may be of interest.
>
<https://electrooptical.net/News/a-high-performance-time-domain-reflectometer>
>
Cheers
>
Phil Hobbs

Neat. No step-recovery diodes.

The LVDS line receivers are radical parts, for 30 cents.

We also used ATLC2 to get a good match of a cheap fat-pin edge-launch
SMA connector to a multilayer PCB. That was fun.

https://www.dropbox.com/scl/fi/x0m28m9y04771m5puzimi/Edge-Launch-Connector_small.bmp?rlkey=9uded3bkuplmwtvhgvtr8yw9u&raw=1

https://www.dropbox.com/scl/fi/ogfqs1m93mf1uw80hwkpi/Rob_51_ohms.jpg?rlkey=u4q3fumbzwmpojck5ih88c45q&raw=1