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TL972: Is the max rail voltage 12V total or ±12V?

David McRell
Intellectual 445 points
Part Number: TL972

Hello!

Is the maximum recommended rail voltage for the TL972 12V total, or ±12V?

The datasheet specifies "12V", but I want to be absolutely sure whether the "±" is implied or not.

Thanks in advance.

Kind Regards,

David McRell

  • 0
    TI__Mastermind 18737 points

    Hey David, 

    The TL972 is 12V total, ±6V. 
    I can tell because the abs max table has 15V listed max, therefore it couldn't be ±12V because that would be 24V. 

    All the best,
    Carolina 

  • 0 in reply to Caro Walter
    Intellectual 445 points

    Hello Carolina,

    In my mind, the same question applies to the abs max spec.  Is the "15V" abs max a total or ±15V?

    However, I believe I found the key detail.

    On page 9, section 8.1, the datasheet says:

    "The TL97x family of operational amplifiers operates at voltages as low as ±1.35 V"

    (emphasis mine)

    The max and recommended spec of "2.7V" is exactly 2x 1.35V, therefore I conclude the max and recommended spec is absolute and not ±.

    Kind Regards,

    David McRell