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DAC904: 25Ohm Impedance Match configuration in datasheet

Part Number: DAC904

Hi, Team

My customer is designing DAC904, they have a question about the datasheet Page 11( figure 4).

It is designed to be a 25Ohm symmetric load at IOUT & ~IOUT.

From ~IOUT terminal it's 26.1Ohm//(402+200Ohm), from IOUT Terminal it's 28.7Ohm//(200+402+Ro).

It looks inverting terminal has higher impedance.

Is there any wrong for the understanding of IOUT terminal impedance?