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PCM1794/1792 DC current offset - sink or source?

Michal Miszczyszyn
Prodigy 30 points

Hello,

How can I cancel DC current offset on analog outputs? I know that second stage of analog output will cancel common mode currents but I want to cancel this current (or at least minimize it) before first stage.

Datasheet says it is -6.2 mA so I am supposed to use +6.2 mA current source from positive rail?

I tough this DAC will rather source current than sink, so initially I was thinking about placing 6.2 mA cuurent source from DAC output to negative rail.... 

Which one is correct assumption?

Regards,

Michal