What is AOE3?
Randy Evans
Sent from my Verizon Wireless 4G LTE smartphone
-------- Original message --------
From: Poul-Henning Kamp <[email protected]>
Date: 04/22/2015 11:41 (GMT-08:00)
To: [email protected], Discussion of precise voltage measurement
<[email protected]>
Subject: Re: [volt-nuts] Transmille 8081
--------
In message <1429713386.29372.25.camel@D2>, Ken Peek writes:
>and balancing JFET switch transitions
>during an ADC cycle is the "secret sauce" that is at the heart of the
>3458A's stellar INL spec. No one else has that. No one else ever will.
>*WAY* too expensive for even Keysight to redesign these days. Just is
>not going to happen...
Sorry to burst your bubble, but I'm pretty sure that's an integral
feature of a number of ADC chips already.
Probably something about a patent expiring...
PS: There's a very instructive walk through the HP multislope in AOE3.
Doesn't really go into the 3458 much, but they lay out how the subsequent
versions in 34401/34972 do things.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[email protected] | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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