On Tue, 3 Feb 2009 09:31:29 -0800, "Joel Koltner"
wrote:

"John Larkin" wrote in message
news
No trick here. Just use fast opamps!

Ah, OK, I was thinking that you were using one of the cheap MMIC amplifiers
from the likes of Hittite/MiniCircuits/etc. and letting them ride on a DC
offset or somesuch.

Too much work, for a mere GHz or so.


What's the gain and flatness of your design?


Gain = 100, or 50 loaded, using two THS4303's. It could be less, using
THS4302's and/or some optional resistors here and there. There are
some hooks for peaking capacitors, to equalize pcb losses and such,
but I haven't played with them yet. These things typically need a
little tuning to get clean step response, which is what we're after
here.

John