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OPA627-DIE: OPA627-DIE temperature range (not stated on webpage or datasheet)

Philip James
Prodigy 30 points
Part Number: OPA627-DIE
Other Parts Discussed in Thread: OPA627

What is the correct operational temperature for the OPA627-DIE?

On your webpage it states that the device is a "high temperature" device, but the specification states "25 to 25".

This makes no sense.

Thank you.

  • 0
    TI__Guru* 93105 points

    Hi Phillip,

    TI may not specify a temperature range for a die because different customers use different assembly methods and materials that can widely affect the junctions temperatures at which the die operates, and that can affect electrical performances. The OPA627-DIE webpage indicates an Operating temperature range (C) of 25 to 25. That is a bit confusing but what it means is a range is not specified, but rather a single 25 degC temperature to which the typical values shown in the Parameter list may be referenced. 

    The "high temperature" rating on the webpage is vague and there is no indication in any of theOPA627-DIE information explaining what exactly that indicates. It probably shouldn't have been on the list and was a mistake.

    TI tests the OPA627 die at wafer level to make sure they are electrically good, but since there are no electrical specifications or temperatures listed in its datasheet TI makes no assurances about them. There are just too many factors beyond TI's control once a customer begins handling and assembling them into different assemblies for us to be able to make assurances. Despite this, customers using TI die products do successfully apply them in their products.

    Regards, Thomas

    Precision Amplifiers Applications Engineering

  • 0 in reply to Thomas Kuehl
    Prodigy 30 points

    If you look at the TO-99-8 Metal Can, it's temp is -55°C ~ 125°C, or the 8-SOIC -25°C ~ 85°C. I would think it should operate at least to -55°C ~ 125°C.

  • 0 in reply to Philip James
    TI__Guru* 93105 points

    Hi Phillip,

    With the exception of some specially designated and tested high temperature products (HT) the widest temperature that is specified for any of our Precision Amplifiers is -55°C to 125°C, and those are finished products not die sales. It is probable the OPA627-DIE will operate over a wide temperature range like that, but no assurances are made that it will that as I explained previously.

    Regards, Thomas

    Precision Amplifiers Applications Engineering

  • 0 in reply to Thomas Kuehl
    Prodigy 30 points

    Thomas, Okay....Thank you for the response. I understand the implications and that there's no assurance regarding is packaged/mounted and the temperature range. The TI webpage temperature range for the device should be updated.