[time-nuts] Looking for high reverse isolation amplifier
Richard (Rick) Karlquist
richard at karlquist.com
Sat Feb 1 01:17:21 UTC 2014
On 1/30/2014 7:50 PM, John Miles wrote:
> Exactly, for unity gain you'd design for +6 dB and series-terminate the
> output with 50R. Good for capacitive loads as well as isolation.
>
>> Do you run it in inverting or non-inverting configuration?
>
> I've only used the non-inverting configuration (figure 1 from the
> datasheet). Takes about 20 minutes to dead-bug with 0603 resistors over
> bare copper.
>
> -- john, KE5FX
> Miles Design LLC
The LMH6702 has 50 dB of reverse isolation at 200 MHz (good)
but the phase noise is 15 dB above my DUT, so the search
continues.
Rick
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