RFID: Amplifier for Oscilloscope @ 134 KHz

[pidy]

hello everybody
first of all sorry for my not perfect english...
i need to measure the signal sended from a TAG (transponder) and received
from an RFID antenna at 134 KHz (LFID) with a digital oscilloscope but
this signal is too low for the resolution of the oscilloscope. and so i
need a preamplifier to put up that signal... i have thought to use an
Op-amp but i think a normal one is not good in this case because it has to
be a particular one for LFID system (for coupling, adaptation etc etc
etc).

everyone can suggest me something?



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[Guy Macon]

pidy wrote:

hello everybody
first of all sorry for my not perfect english...
i need to measure the signal sended from a TAG (transponder) and received
from an RFID antenna at 134 KHz (LFID) with a digital oscilloscope but
this signal is too low for the resolution of the oscilloscope. and so i
need a preamplifier to put up that signal... i have thought to use an
Op-amp but i think a normal one is not good in this case because it has to
be a particular one for LFID system (for coupling, adaptation etc etc
etc).

everyone can suggest me something?

I suggest that you buy a PAR (Princeton Applied Research Corporation)
model 113 amplifier.

Also see:
http://www.aricorp.com/OSP-1.html
http://www.tek.com/site/ps/0,,60-10387-INTRO_EN,00.html
http://tangentsoft.net/elec/meas-preamp/


--
Guy Macon <http://www.guymacon.com/>
<a href="http://www.guymacon.com/"> http://www.guymacon.com/ </a>