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DAC6551-Q1: Output impedance

Tosh+
Expert 7890 points
Part Number: DAC6551-Q1

Hello DAC team,

My customer is considering load impedance for the output of DAC6551.
In the datasheet, the output impedance at mid-code is typical 1ohm.

Please let us know the max output impedance from characteristic data.
(Of course it's not guaranteed)

Regards,
ti

  • 0
    TI__Guru 53183 points

    Hi TI,

    I expect 3.5Ω to be a good max value to design with.  Keep in mind that if there is no headroom between the output voltage and supply voltage, loads on the DAC will cause a greater voltage drop, which will look like higher output impedance.

    Thanks,
    Paul