[time-nuts] AD5791 for EFC control ?

David davidwhess at gmail.com
Sun Apr 21 07:18:28 UTC 2013


On Sun, 21 Apr 2013 06:41:06 +0000, "Poul-Henning Kamp"
<phk at phk.freebsd.dk> wrote:

>In message <f356n894epicao60crhh56g7itkofera5m at 4ax.com>, David writes:
>
>>The DAC1220 span and offset drift versus temperature on the other hand
>>are 20 to 50 times worse than that of the AD5791 unless you want to
>>spend the $30 difference in price for deglitching so you can use the
>>AD5791 autocalibration feature.
>
>Uhm, you lost me there, "autocalibration feature" ?

Sorry, I meant the DAC1220 manual self-calibration feature which
corrects for gain and offset errors.



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