[time-nuts] EFC tracking

Bob Camp lists at rtty.us
Mon Jun 28 19:48:34 EDT 2010


Hi

Noise spectra down into the 1/f region (< 10 Hz) would be nice.

Bob


On Jun 28, 2010, at 7:45 PM, Hal Murray wrote:

> 
>> The one I'm building up is a ADS1278
>> http://focus.ti.com/lit/ds/symlink/ads1278.pdf
>> There are others in the series with fewer inputs. As with a lot of
>> converters, there isn't a whole lot of data on them. 
> 
> What are you looking for?
> 
> There is a section of DC parameters on page 3.
> 
> No missing codes:  24 bits
> INL: 0.0003% (typical), 0.0012% (max)
> Offset drift: 0.8 microvolts/C (typical)
> Gain drift: 1.3 ppm/C (typical)
> 
> 
> 
> -- 
> These are my opinions, not necessarily my employer's.  I hate spam.
> 
> 
> 
> 
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