How to measure the output impedance of the DAC chip

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ergo

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Joined 2001
I'd like to know the output impedance of AK4393 DAC chip for correct filter and analog stage simulation.

It is a differential voltage output DAC.

How to measure this?

Also while at the subject what about current output DACs like PCM1704. How to determine their output impedance?

Regards,
Ergo
 
E

ergo

Member
Joined 2001
No, basicly I want the value of a resistor I should put in series with either a voltage or current source respectively in simulation...

I know that for an amp one could inject a sine wave of known voltage into the powered amps output through a known resistor and that way determine the output impedance.

I'm not sure if I can do it for DAC chip. Is it sure that I can't damage it? I do not know how they do the output circuit in component level inside the IC.

Ergo
 
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