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求INA159 长期稳定性参数

时间:10-02 整理:3721RD 点击:

请问谁可以提供INA159在70度2000小时的条件下 'Gain Long-Term Drift' 或者 ‘Resistor Matching Ratio Long-Term Drift’指标是多少?谢谢!

You may estimate the maximum expected parametric shift over any given period of time by using:

–100% of the max (min) PDS guaranteed value in the case of specs centered around a mean value (Vos, Vref, Vos Drift, etc).

–10% of the max (min) guaranteed value for parameters specified as a fixed positive value (IQ, AOL, PSRR, CMRR, etc.

  and pro-rate them based on the expected ten-year life of the product.

You need to keep in mind that the long-term shift is not exactly a linear function of time - it is steeper (shifts faster) in the first year and slows down in the later years. It also usually excludes the first 30 days due to continuing self-curing of the molding compound used for packaging of IC. 

Hi Jeff, thanks for your reply.

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