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differential signals Vpp definition *2, or *1

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shanmei

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For differential DAC output, if the output common mode voltage is 1V,
the maximum output voltage is 1.5V,
the minimal output voltage is 0.5V.


if the A and B are the outputs of DAC, if A=1.5V, B=0.5V, then V_AB=1.5-0.5=1V,
if A=0.5, B=1.5V, then V_AB=0.5V-1.5V=-1V,
so the definition of Vpp=1V-(-1V)=2V or Vpp=1V?

Please help? Vpp=2V or Vpp=1V? Thanks.
 

It is 2Vpp differential.
 

Hi,

I´d say it depends on ADC type.
For example uniplar/bipolar input....

Please read datasheet. It will tell you.

Klaus
 

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