[time-nuts] Advice on 10 MHz isolation/distribution

[life speed]

Message: 6
From: Pete Rawson <peterawson at earthlink.net>
Subject: Re: [time-nuts] Advice on 10 MHz isolation/distribution

>Clay,
>
>Analog devices AD4899-1 voltage noise = 2nV/rtHz @ 10Hz; GBW = 300MHz.
>
>Pete Rawson

That is an interesting part.

So, how does one think about reverse isolation in a feedback amp?  Is the open-loop gain of the amp applied to the spurious signal to cancel it?  The spurious, reduced by the ratio of the 50 ohm source impedance, to the output impedance of 0.7 ohms of the amp (-18 dB) appears at the inverting input . . .

And what would appear at the non-inverting input?

Off to the simulator.

Clay