[time-nuts] 31bit ADC, 1000 samples per second

David davidwhess at gmail.com
Mon Dec 10 21:56:08 UTC 2012

The gain drift is specified at 2ppm per degree C.  There are
provisions for a calibration cycle but that requires external

On Mon, 10 Dec 2012 07:26:55 -0800 (PST), Robert LaJeunesse
<rlajeunesse at sbcglobal.net> wrote:

>. . .
>typical for better monolithic sigma-delta converters. Nonetheless 20 bits 
>indicates a matching reference would have to hold 1PPM over temperature, no 
>simple task. 
>Bob LaJeunesse

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