Re: Differential Pair Input Noise Issue


<bigcaboy@xxxxxxxxx>

thanks, your explanation is the best even though I read your post for
a couple of times.

** Do not top post !!!!!!!!!!


2k ohm is a big value based on my understanding of thermal noise


** But the voltage noise of those 2N5486 fets is much higher - and it rises
sharply at low frequencies.



that's why I posted this question here. Right now I understand the
author's words-he thinks 2k ohm is small enough to minimize thermal
noise. In stead I think the author should pick a op-amp running under
lower supply voltages then pick a smaller resistor.


** Did you come here to ask questions or give lectures ?




..... Phil



.

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