• State Resolved
  • Locked Locked
  • Replies 5 replies
  • Subscribers 19 subscribers
  • Views 823 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

post removed

AnonymousContent
Expert 4605 points

post

  • 0 in reply to Chris Cockrill
    TI__Expert 4605 points

    why all of fully BJT gates are military grade? Are BJTs better than CMOS in life and withstanding in hard conditions?

  • 0 in reply to AnonymousContent
    TI__Guru 62930 points

    Ali, I don't think it is possible to generalize technologies for robustness.  It is more appropriate to apply these characteristics to a design.

    Device functions can be implemented in CMOS or other technologies and be designed to meet various conditions.   Typically the military grade parts are designed/characterized with performance at military temperature extremes of -55c to 125c.

    Regards,

    Wade

     

  • 0 in reply to Wade Vonbergen
    TI__Expert 4605 points

    You are true Wade but let me explain my question better. i worked several years in satellite circuits. i know that in space and harsh environment BJT is better than CMOS because its parameters except hfe does not change with radiation and no single event occur in BJT. but CMOS have SIGR(single event gate rapture) and SIB(single event burnout) . i see in your site and other manufactures that BJT is commonly used is Military and Space whenever it can , like some places that power consumption and complexity can be satisfied with BJT. with all of this i mentioned you think that BJT don't have stronger structure in harsh environment? I have another question.does Texas EP products better than Automotive grade in harsh environment? can i think that EP is a grade between automotive and military?

  • 0 in reply to AnonymousContent
    TI__Guru 62930 points

    Ali, in general your comments may be true.

    However, the space market has needs for various complexities.  Some of the CMOS product will meet the needs of specific environments.  Customer will review existing data and possibly augment data with their own to validate if device meets their environmental needs.

    EP product indicates that the device has baseline controls placed on it.  This insures that customer will be notified if there are changes to the processing flow.   If you are more interested in this, I can have one of our QA representatives answer more thoroughly.   In a EP datasheet, this is indicated on the first page as part of the description.  Additionally, some of the EP product may include extended or custom temperature ranges.

    Regards,

    Wade