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LM135A: LM135 Typical Accuracy Specificaiton

May
Genius 9880 points
Part Number: LM135A

Hi Team,

We received inquiry from customer asking the difference of between typical and maximum accuracy specification. 

Also, what sigma (1,2 or 3?) used for typical and maximum accuracy?

Thank you and looking for your kind response.

Regards,

Maynard

  • 0
    TI__Mastermind 40965 points

    Hi Maynard,

    Typical specifications generally reflect the behavior that was observed during product development. It may or may not be limited to nominal conditions for supply voltage, temperature, and/or other configurations as related to the device or specification in question. I haven't seen sigma applied to this.

    Maximum/Minimum specifications are guard-banded and guaranteed for the stated conditions. This specification has sigma applied, but the sigma level may vary. In my career, I have only seen a sigma of at least 3 used, but I'm not sure that TI or the industry has a standard for this.

    thanks,

    ren

  • 0 in reply to Ren Schackmann
    TI__Genius 9880 points

    Hi Ren,

    Thank you for the support.

    Just to confirm regarding typical, is it also calculated like an average of a sample of output during product development, or 50% of the sample population may meet or exceed this value, or is it also guardbanded so that it is maybe 80% of the sample population?

    Thank you and looking forward for your kind response.

    Regards,

    Maynard

  • 0 in reply to May
    TI__Guru* 91206 points

    Maynard - 

    Ren is out today, however - I think he was pointing you towards our min and max specs if you are looking for the guardband we put on a spec for a device. Min/max would encompass all the slight outliers, conservatively, whereas typical is just that - I don't recall us, on any device, applying any percentages into our specs - the parts must meet what we have in the datasheets (at validation and final test) or we don't ship them out. 

  • 0 in reply to May
    TI__Mastermind 40965 points

    Hi Maynard,

    We make no claim or guarantee for typical values. We only guarantee min/max. Depending on which spec you're interested in, there's most likely a chart which elaborates on the data behind the typical value. 

    thanks,

    ren