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LM139: LM139 MD8/MDE/MDR differences

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Replies: 2

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Part Number: LM139

Hello,

I can't seem to find this info on the datasheet, but what is the difference between these three part numbers?

  • LM139 MD8
  • LM139 MDE
  • LM139 MDR

Thank you!

  • I think I found the answer in
    e2e.ti.com/.../738021

    MD8 = military grade

    MDE = space grade, radiation qualified to 100 krad at low dose rate (10 mrad/s)

    MDR - space grade, radiation qualified to 100 krad at high dose rate (50 to 300 rad/s)

  • In reply to quark:

    Hello Quark,

    Yes. Correct.

    MD8 = Military Bare Die

    MDE = Space grade products that are radiation tested and qualified at low dose rate (0.01 rad/s).

    MDR = Space grade products that are radiation tested and qualified at high dose rate (50 to 300 rad/s)

    More information can be found in the Literature tab of the Aerospace and Defense site:

    http://www.ti.com/applications/industrial/aerospace-defense/technical-documents.html

    Regards,

    Paul Grohe

    TI Comparators (CMPS) Applications Group

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