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TMP117: Calculation for worst case accuracy

Part Number: TMP117

Hi team,

Could you give me comment on following customer question? In order to calculate worst case accuracy, the customer calculates it as below equation. Is it correct understanding?

For 10yr product life cycle, the worst case accuracy = +/- 0.14C,which is composed by (Spec +/-0.1C + long-term drift +/-0.1C + repeatability +/-0.01C). Or should the repeatability be removed from the worst case because it should be included in the spec (+/-0.1C)?

Best regards,

Takeshi Sasaki