26 May
2012
26 May
'12
1:31 p.m.
On 05/26/2012 01:16 PM, Mouse wrote:
Check out this article. (watch for URL wrappage) This is a very
interesting read.
http://www.edn.com/article/520010-Design_femtoampere_circuits_with_low_leak…
I do a lot with electronic metrology; we have to be conscious of that
sort of thing, particularly thermal effects and cleanliness, all the
time in that world. It really is a whole different world of electronics.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Just for the
lulz, yesterday I saw a current amplifier that works in
the order of FEMTOamps (!!!) and uses - gasp - 10 GIGAohms resistors
:oO
Um!
A femtoamp is only several thousand electrons per second (between 6241
and 6242, if the values I have at hand are correct). Isn't that, like,
the leakage current through an air gap?