• State TI Thinks Resolved
  • Locked Locked
  • Replies 6 replies
  • Answers 2 answers
  • Subscribers 49 subscribers
  • Views 304 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

OPA4277: OPA4277MDTEP Temperature Cycle/Thermal Shock

Brandon Chau
Prodigy 20 points
Part Number: OPA4277

I am looking to verify OPA4277MDTEP of the OPA4277-EP High Precision Operational Amplifier series.

I need the test setup information used for Temperature Cycling or Thermal Shock.

  • 0
    TI__Guru* 93105 points

    Hi Brandon,

    That information may be very difficult to find. The OPA4277MDTEP (OPA4277-EP) developments were handled by a different TI division that was disbanded several years ago. We didn't receive any information about how the original qualifications were accomplished.

    I have contacted our Quality and Reliability Engineering department and asked if they have any insight into the OPA4277-EP temperature cycling or thermal shock circuits. We'll see if they come back with anything.

    Regards, Thomas

    Precision Amplifiers Applications Engineering

  • 0 in reply to Thomas Kuehl
    Prodigy 20 points

    Hello Thomas, have you heard back from qual and reliability? I do need to verify the components on our end for our applications; if you may share with us what test setups were performed to verify them that would help us.

  • 0 in reply to Brandon Chau
    TI__Guru 52541 points

    Hi Brandon,

    If you are asking for specifics temperature cycling and thermal shocks tests, it may be difficult to come by. All the ICs rated in Enhanced Product (-EP) will meet the minimum requirements as shown in the link below. You can find the following information on p.3 of from the TI Components for Space, Avionics and Defense Guide (TI adapts the industrial test standard for the application in these products). 

     

    https://www.ti.com/lit/sg/slyc143e/slyc143e.pdf?ts=1637202298948&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FOPA4277

    If I am able to assist you with additional information, please let me know. 

    Best,

    Raymond

  • 0 in reply to Brandon Chau
    TI__Guru* 93105 points

    Hi Brandon,

    I made some calls to see what I could find out about the OPA4277-EP temperature cycling and thermal shock exposures. The devices are simply loaded into metal trays and the trays into the temperature chamber for the thermal exposures. They are not in sockets and are not powered. The pre and post electrical tests use the product's standard production tests.

    Regards, Thomas

    Precision Amplifiers Applications Engineering

  • 0
    Prodigy 20 points

    Hi Thomas,

    You had mentioned that "The pre and post electrical tests use the product's standard production tests."; may I have those standard production test setups?

    Best,

    Brandon

  • 0 in reply to Brandon Chau
    TI__Guru* 93105 points

    Hi Brandon,

    TI deems the test methods and circuits used for its products as TI Intellectual Property so I am not able to provide information about the specific OPA4277-EP test circuits and methodologies.

    The best resource I can recommend is a series of EDN magazine articles about op amp testing, "The basics of testing op amps, part 1: Circuit test key op-amp parameters" created by our Precision Amplifiers team:

    https://www.edn.com/the-basics-of-testing-op-amps-part-1-circuits-test-key-op-amp-parameters/

    There are four parts to the article, and there is a reference at the bottom of this first article to a National Semiconductor paper listed under "For further reading." 

    Regards, Thomas

    Precision Amplifiers Applications Engineering