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ADS131E06 Input Current Noise

Dave Knight
Intellectual 590 points
Other Parts Discussed in Thread: ADS131E06, TIDA-00661

What's input current noise for analog inputs on ADS131E06? Page 22 of datasheet says it's negligible, but I'm wondering what impact an RC filter will have on noise floor and accuracy.
  • 0
    TI__Guru**** 181981 points

    Hi Dave!

    I'll see if we have any typical numbers for the current noise on the ADS131E06 inputs. Adding an RC filter should not pose any issues - please review section 10.2 of the datasheet for some detail on the anti-aliasing (RC) filter used to produce the plots in Figures 61 through 64. You can also take a look at TIDA-00661 which shows an air circuit breaker application and provides the associated test results using a similar input filter arrangement.