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Forum Post: ADS1261: IDAC specification

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Part Number: ADS1261 Dear Technical Support Team, I have some questoins about IDAC specification of ADS1261 . ① Is it correct understanding about Accuracy and Same Current magnitude below? The current spec of accuracy is ±4%. When both IDAC1 and IDAC2 are set 1000uA, , the max range is from 960uA~1040uA(Accuracy). The difference between IDAC1 and IDAC2 is max ±1%, so when Idac1=1000uA, Idac2 may drift 1000uA±10uA(Same Current magnitude) ② What the meaning of the "Different current magnitudes" ±1% on datasheet? ③ Does the ripple of AVDD affect "Match error" spec of IDAC ? Datahsheet has "temperature vs Match error" like Figure 47 , however it doesn't have "drift of AVDD vs Match error". So I'd like to confirm it. Best Regards, ttd

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