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！
求INA159 长期稳定性参数
Gerry Lee1 提问时间: 2023-07-22 22:12:29 / 已解决
如需获得 2个回答
Jeff Wang 回答时间: 2023-07-22 22:42:20 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.
- Gerry Lee1 回答时间: 2023-07-22 22:59:55
Hi Jeff, thanks for your reply.