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TMDSDOCK28335: TMDSDOCKF28335: DSP with both +/- ADC input

Marvin Cantos
Expert 4515 points
Part Number: TMDSDOCK28335

Hi Experts, 

Good day.

Please help with the below customer concerns.

"I am looking for DSP which can take both positive and negative input to its ADC

I am using TMDSDOCKF28335 which can only take 3.3V positive input to its ADC"

Appreciate your help.

Thank you.

Kind regards, 

Marvin

  • 0
    TI__Guru 74110 points

    Marvin,

    All of our embedded ADC in C2000 have Uni-polar inputs.  The F2837x/F28388 has the option of differential inputs, but these are still positive voltages.  If you have a bi-polar signal you would need to use an amplifier to convert this to the same input range as our ADCs required.

    Best,

    Matthew