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High resolution, low noise, feed symetrical ADC

Piotr Kurowski
Prodigy 30 points
Other Parts Discussed in Thread: ADS1256, ADS1259, PGA280, ADS1248, ADS1258

I’m looking for analog to digital converter with high resultion (24bits? Or maybe more) to measurement small symmetrical signals (<+-0,1V). I browsed TI but most adc’s don’t have possibility to feed symmetrical. For example ADS1256 (I can AVDD and AGND on the scheme).


TI have in offer low noise, high resolution adc? (feed symetrical)

 
  • 0
    TI__Guru** 113765 points

    Piotr,

    Welcome to the forum!  When you say symmetrical, are you referring to a signal that is 100mV above and below ground?  If so, you may want to take a look at the ADS1248, or ADS1258 operating with bipolar power supplies.  Also the combination of the PGA280 and ADS1259 may also work for you.

    Best regards,

    Bob B