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AMC1100: Possible P2P dropped-in alternatives?

AnBer
Mastermind 28890 points
Part Number: AMC1100
Other Parts Discussed in Thread: AMC1200, AMC1302

Team,

Assuming SOIC (DWV) | 8 package: Are the below options P2P dropped-in replacement to AMC1100?

AMC1100 vs AMC1200 vs AMC1200-Q1 vs AMC1300 vs AMC1300B-Q1 vs AMC1302-Q1

Since those devices have better electrical and Isolation specs I assume that you can replace an AMC1000 "one to one" with those device.
Is it correct?

What would be the different consideration to take into account to migrate a PCB to those alternatives?

Thanks in advance!

A.

  • 0
    Guru 140200 points

    Hi Anber,

    the recommended minimum low side supply voltage differs a bit, 2.7V to 3.0V.

    Kai

  • 0
    TI__Guru**** 168485 points

    Hi AnBer,

    Besides the voltage supplies that Kai mentioned,  the AMC1200 has different VCMout levels.  There are different isolation levels as well depending on the device.  Gain and offset error differences are all shown in the respective datasheets.

  • 0 in reply to Tom Hendrick
    TI__Mastermind 28890 points

    Kai, Tom,

    Thanks for the answer.

    Apart from the different mini low side supply:
    The AMC12xx and AMC13xx looks like superset of AMC11xx (so better performances overall).
    Have you seen customer migrating to those device without PCB changes?
    Of course thorough testing will be needed.
    But is it realistic to say that you can drop an AMC12xxx/AMC13xx in place of an AMC11xx and it will functionnally replace it.

    Thanks,

    A.

  • 0 in reply to AnBer
    TI__Guru**** 168485 points

    Hi AnBer,

    In the DWV package, yes, you can swap any of those part numbers on the same PCB assuming you have the proper power supplies.  The AMC1302 has a +/-50mV input range, but uses the same package/pin out as the other devices