Common mode voltage for AD9467

Question

Is the common mode voltage of AD9467 referred to (VIN+ + VIN- )/2 or the DC bias voltage of VIN+ & VIN-? 
 If the common mode voltage of AD9467 refers to (VIN+ + VIN- )/2, then I can use different DC bias voltage for VIN+ & VIN-. 
 If the common mode voltage of AD9467 refers to the DC bias voltage, then I need to use the same DC bias voltage for VIN+ & VIN-.

JAlipio · Accepted Answer

Hi AD9467 
 Thanks for your interest in AD9467. 
 The common-mode voltage refers to the DC bias of the VIN+ and VIN &minus; . 
 For best dynamic performance, the source impedances driving VIN+ and VIN&minus; should be matched such that common-mode settling errors are symmetrical.)

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Common mode voltage for AD9467