Topband: Topband Digest, Vol 207, Issue 15

[Bob Wertz]

ass a asa

Sent from my iPhone

> On Mar 12, 2020, at 9:00 AM, topband-request at contesting.com wrote:
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> Today's Topics:
> 
>   1. Re: Hi Z amplifiers for 160m (Chris Moulding)
>   2. Re: Hi Z amplifiers for 160m (John Kaufmann)
> 
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Thu, 12 Mar 2020 10:10:44 +0000
> From: Chris Moulding <chrism at crosscountrywireless.net>
> To: topband at contesting.com
> Subject: Re: Topband: Hi Z amplifiers for 160m
> Message-ID:
>    <7db12499-26a9-9cfa-409c-c9bf389b9aff at crosscountrywireless.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Thanks again for all the comments. Very interesting especially the 
> reasoning behind the designs.
> 
> The device I've picked for my design is the LTC6228. This is a new 
> device by Analog Devices that only came out late last year. The voltage 
> noise is 0.88 uV/sqrt Hz and the current noise is 3 pA/sqrt Hz. Claimed 
> output IP product performance is <-100 dBc at 4V peak to peak output.
>