In message: <[EMAIL PROTECTED]>
Dr Bruce Griffiths <[EMAIL PROTECTED]> writes:
: But the input voltage noise of the MAX477 is 5nV/rtHz, the corresponding
: value for a discrete transistor circuit may be as low as 1nV/rtHz.
rtHz is a new one for me (I'm mostly a software dude). A quick google
search shows that this appears in lots of spec sheets as a measure of
noise (which I get from this context), but what is that exactly?
http://www.ic-designs.com/ICDTechBrief1.pdf gives a nice detailed
account of how to calculate this number (V/RTHZ it says), but doesn't
define the base unit. I get the 'Hz' part, but not the 'rt' part.
Can someone provide a good reference?
Warner
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