ZHCSJ86B December 2018 – April 2019 REF3425-EP , REF3430-EP , REF3433-EP , REF3440-EP
PRODUCTION DATA.
- 1 特性
- 2 应用
- 3 说明
- 4 修订历史记录
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Parameter Measurement Information
- 9 Detailed Description
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13器件和文档支持
- 14机械、封装和可订购信息
8.2 Long-Term Stability
One of the key parameters of the REF34xx-EP references is long-term stability. Figure 17 shows the typical drift value for the REF34xx-EP is 25 ppm from 0 to 1000 hours. This parameter is characterized by measuring 32 units at regular intervals for a period of 1000 hours. It is important to understand that long-term stability is not ensured by design and that the output from the device may shift beyond the typical 25 ppm specification at any time. For systems that require highly stable output voltages over long periods of time, the designer should consider burning in the devices prior to use to minimize the amount of output drift exhibited by the reference over time.
Figure 17. Long Term Stability - 1000 hours (VREF)