A fast comparator seems like a good idea, and it
is simple, however it is actually the last thing
you want to use. High thermal sensitivity and high jitter.
Rick
On 7/19/2012 1:35 PM, Dan Kemppainen wrote:
Or use a fast comparator such as an ADCMP600 series. Much lower delays,
and faster rising/falling edges.
FYI, I've had good luck with this at 30Mhz. You could transformer couple
this one, or simply couple it through a cap.
Dan
On 7/19/2012 3:47 PM, time-nuts-requ...@febo.com wrote:
This is sort of a FAQ: the argument was already discussed here. One of
the
most interesting idea (in my opinion) is to use an RS485 line receiver
like
the ST3485, MAX483, ADM485. They are actually transceivers so they
must be
tied permanently in RX. Since they are differential you can also put a
1:1
(or a 1:4 to raise the level) transformer to isolate the input too.
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