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PCM1820: Single ended input

Eddie Koh
Genius 10505 points
Part Number: PCM1820

Is it possible to use PCM1820 as single input? (By putting Vref to half of AVDD).

Any impact to dynamic range/resolution/noise?

  • 0
    TI__Mastermind 23050 points

    Hi Eddie,

    PCM1820 does not support single ended or pseudo-differential inputs like this. This will cause the common-mode voltage to change over the input range which will significantly degrade performance for signals greater than 100mVpp.

    Best,

    Zak