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TLV9162: dedicated for comparator mode?

Christian Willschek90
Prodigy 695 points
Part Number: TLV9162
Other Parts Discussed in Thread: OPA2992, TLV9302, OPA2990, OPA2991, TLV9152, TLV9352, , TLV9362, TLV9102

Hi

is TLV9162, TLV9362 and OPA2992 dedicated for use in comparator mode? Similar like OPA2990, TLV9102, TLV9302, OPA2991, TLV9152, TLV9352 which has no differential input clamping diodes, as I understand. See also https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/980906/tlv9062-more-opamps-usable-as-comparators?tisearch=e2e-sitesearch&keymatch=TLV9062

Thanks

Christian

  • +1
    TI__Mastermind 25161 points

    Hey Christian,

    Thanks for your interest in these devices. They are not necessarily dedicated for use in comparator mode, they are dedicated to be used as an op amp, they are able to be used in comparator mode. This is for configurability in your designs. If you already have an op amp and need a comparator that does not need to be high performance, you can grab a dual channel and use one as an op amp and another as a comparator to save on size/cost

    Since the devices do not have differential input clamping diodes they are able to be configured this way. 

    Best,
    Jerry

  • +1
    TI__Prodigy 695 points

    Hi Jerry,

    many thanks - that was the answer I was looking for.

    May I ask you the same question for LM7322MM/NOPB and LM7332MM/NOPB?

    Best 

    Christian 

  • +1 in reply to Christian Willschek90
    TI__Mastermind 25161 points

    Hey Christian,

    The best way to identify the devices that have back to back diodes is looking at the absolute maximum ratings in the electrical characteristics.

    If the max Vid (also called differential input voltage) is around 1V or less (about the voltage of a diode drop) you will have back to back input diodes.

    If the max Vid is close to the max supply of the device, you will not have differential input diodes.

    Best,
    Jerry