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Original question:

OPA2320: Output Voltage swing versus Output Current test conditions

OPA2320: Automotive vs Commercial Comparison

Alpha H
Genius 10855 points
Part Number: OPA2320
Other Parts Discussed in Thread: OPA320

Hey folks, 

Quick question regarding the OPA2320 and OPA2320A-Q1.  It looks like both devices work in the same Ta (-40C - 125C), and the ESD ratings are surprisingly higher on the commercial version. 

Can you give an overview of the differences between the commercial and automotive-grade versions?

Thanks,

AH

  • 0
    TI__Guru 57801 points

    Hi AH,

    Your question may be difficult to answer.

    For automotive qualified part, it typically has to go through a list of automotive test requirements and test procedures, which the list is long and time consuming. This is the same as military and aerospace certified parts. The objectives are to meet specific test conditions according to the specified test procedures and conditions. These parts typically do not require to pass test beyond the certified tests, since the given passing requirements and/or test conditions are difficult enough to pass to begin with. 

    Commercial grade part may test for maximum withstanding rating (e.g. ESD) in a given test condition. So there may be a trend to report the maximum passing figures, This may not be the consistent practices in every parts. Since the OPA320 is reported for +/4kV in HBM per ANSI/ESDA/JEDEC JS-001 requirements, it means that the part is able to withstand this test compliance. 

    However, It does not mean OPA2320A-Q1 grade is unable to meet the +/-4kV test ratings, we just do not have the tested data. It just means that OPA2320A-Q1 is qualified for the minimum automotive requirements and/or application.  This is same as aerospace or military grade parts, which have the minimum qualified and passing requirements. If higher performance or specification figures are required, it is typically tested specifically for these requirements in addition to a qualified part under given testing conditions.  

     

    I hope that I answered your questions. If OPA2320 will be used for automotive application, a customer should select the automotive grade. If you have further questions, please let me know. 

    Best,

    Raymond