alexgaas
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alexgaas said:"I am not sure I understand the second part of your reply. It sounds like you are talking about box averaging - average groups of 10 samples - I am not sure."
Which part?
alexgaas said:I was thinking to re-sample (or integrate) another time (with period of 1 ns or 2ns). In this way the noise equivalent bandwidth is 1/20 of the last one (1GHz). But it's only an idea...i don't know any about this technique!What do you think?
alexgaas said:If you take the formula of KT/C noise of the link you can see that KT/C noise is indipendent from r...ok that's true. But it's the result of the integration of a single pole
RC network an this constant RC is very short for the very high bandwidth of signal.
So my idea is to re-sample (or integrate but the series switch with a capacitance is like an integrator) this storage voltage over a bandwidth less large.
In this way, probably my noise is filtered but now my new capacitance (of the second sample and hold) could be 10 or 20 time the first one (KT/C noise reduced by 13 dB if we filter with 2 ns).
Probably i'm doing some mistakes...what do you think?
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