Am 10.10.2017 um 22:25 schrieb Magnus Danielson:
This one, if you read what is written there:
http://www.analog.com/en/products/linear-products/comparators/adcmp572.html#product-overview
I have used a ADCMP580 comparator on a home etched board
with semi rigid for the outputs. This is what I got from it:
<
https://www.flickr.com/photos/137684711@N07/33305853110/in/album-72157662535945536/
>
I have also experimented with BAT15 Schottky limiters to get less rise
time at the cost of less amplitude.
That has been replaced by a 54754A differential TDR in the mean time :-)
The scope knows its own risetimes and can calculate them away, at least
somewhat.
BNC and 40 ps rise time don't go together well.
Cheers, Gerhard
On 10/10/2017 10:20 PM, Bruce Griffiths wrote:
It appears to be merely an ECL comparator;
https://www.eevblog.com/forum/projects/yet-another-fast-edge-pulse-generator/
Bruce
On 11 October 2017 at 09:14 Magnus Danielson
<mag...@rubidium.dyndns.org> wrote:
Hi,
On 10/10/2017 09:42 PM, Brooke Clarke wrote:
Hi Larry:
How does it work.
When I was working with microwave semis it was either a tunnel
diode or
a Step Recovery Diode.
Looking at the pictures, it seems like the surface mounted chip marked
AJK AAA is the driver-chip that connects through a capacitor over to
the
centerlead of the BNC output.
Some form of driver, and setup such that amplitude scale can be
controlled.
Cheers,
Magnus
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