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ADS131E06 Input Current Noise

Dave Knight
Intellectual 590 points
Other Parts Discussed in Thread: ADS131E06, TIDA-00661What'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.
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    TI__Guru**** 176331 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.