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MSPM0G3507: OPA、GPAMP、ADC

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Prodigy 190 points

Part Number: MSPM0G3507

Tool/software:

If both on-chip analog peripherals OPA0 and OPA1 of MSPM0G3507 are being used, can GPAMP still be used for internal ADC detection?

  • 0
    TI__Prodigy 720 points

    Hi,

    It will depend on your package and which pins or peripherals you are assigning to the OPAs, as there could be pin resource conflicts depending on these factors. Assuming you are using the LQFP-64 package (same as the launchpad), then the following table from the datasheet helps visualize the potential conflicts:

    To use the GPAMP internally to buffer to the ADC, you will need to configure GPAMP_IN+, using up pin 30:

    So as long as you do not need to pinout the OPA0 IN0+, you should be ok. If you need to, you could also reconfigure the pin at runtime to swap between the OPA and GPAMP depending on which peripheral is needed at that time.

    Best,

    Sam