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AMC3330-Q1: Prototype part differences

David Stotz
Prodigy 140 points
Part Number: AMC3330-Q1

We noticed that some of our parts are labeled PAMC3330QDWERQ1 and I believe are prototype parts.

Is there a difference we need to be aware of between the PAMC3330QDWERQ1 parts and the AMC3330QDWERQ1 parts?

Thanks,

Dave

  • +1
    TI__Mastermind 47625 points

    Hi Dave,

    P marked are early prototype devices. I checked my notes and found two possible differences:

    1. Gain of 2.05 as opposed to specified gain of 2. 

    2. Common-mode input voltage violation triggering a fail-safe output:

    As the P marked devices are a few years old tracking down exactly which (if either) of these differences are present would be difficult with the topside marking, but I can ask if you have that information available. The alternative to verify performance is to take a look on the bench if you have an EVM and a couple voltage supplies: https://www.ti.com/tool/AMC3330EVM

    Can you share any information about the application or do you need any assistance with a schematic/layout review? 

  • 0 in reply to Alexander Smith
    Prodigy 140 points

    Alexander, thank you for the information!  We have decided to replace any devices marked with the "P" just to make sure our testing is valid.