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TLV320ADC6140: Connecting ADC input in parallel for 1/2 and 3/4 to use the 3dB improved DNR before DRE

Christian John Barlis
Intellectual 915 points
Part Number: TLV320ADC6140

Is it possible to directly parallel the ADC Input's for 1/2 and 3/4 to use the 3dB improved DNR before DRE, using common DC blocking capacitors and other input circuitry?

  • 0
    TI__Guru 63965 points

    Hello,

    Input channel summing is a supported feature in this device.  Take a look at Section 8.3.6.6 Programmable Channel Summer and Digital Mixer for more information.

    Yes, the inputs can be connected together after a common DC blocking capacitor for each of the pairs that are being summed.