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REF3312: Lower temp drift device

Shinya Sawamoto
Expert 5260 points
Part Number: REF3312
Other Parts Discussed in Thread: REF2025

Hello team,

I'm looking for a precise voltage reference which has performances below.
- Output: 1.2V or 1.25V
- Accuracy: <0.2%
- Temp drift: <7ppm/C
- Drive capability: 10mA< sink&source

What is the best option for it?

Thanks in advance.
S.Sawamoto

  • 0
    TI__Mastermind 19370 points

    Hi S.Sawamoto,

    We have a couple of options that are available. What is the ambient temperature range this device needs?

    I would start with the REF2025. This device has 2 output and the VBIAS output is a high precision 1.25V. This device works from -40C to 125C. The draw back is that this is 8ppm/C instead of 7ppm/C. Will this be a deal breaker? What is the reason they need exactly 7ppm/C?

    - Output: 1.25V
    - Accuracy: 0.05%
    - Temp drift: 8ppm/C
    - Drive capability: +/- 20mA