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  • Resolved

REF3312: Lower temp drift device

Expert 4800 points
Shinya Sawamoto

Replies: 1

Views: 21

Part Number: REF3312

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

Expert 4800 points
Shinya Sawamoto
  • Genius 16430 points
    Marcoo Z

    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

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    If you feel your thread is resolved, please selected Answered.

    Looking for the lowest noise voltage reference? Check out the new REF70  family of products starting with the REF7025 with 0.22 ppm p-p of noise.

    Check out: Voltage Reference Design Tips For Data Converters a new app note that discusses voltage reference error and how it affects ADCs/DACs

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