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TMS320F28075: why the 28075 ADC Conversion Time so long （325ns）

Shuai Peng
Intellectual 780 points

Part Number: TMS320F28075

why the 28075 ADC Conversion Time so long （325ns）， the value on the 28335 is 80 ns.

  • 0
    TI__Guru 60865 points
    Hi Shuai,

    This device uses a different ADC architecture.

    Among other changes, this allows for multiple ADC instances on a single device. Depending on the package, if your F2807x device has 3 ADCs you can get 3 parallel samples in 325ns, vs F28335 which would take about 240ns (and only 2 samples could be simultaneous).

    The accuracy on F2807x devices is also much improved from F2833x.