AD7691 Pulsar Differential ADC Common Mode Input Spec

AD7691 spec sheet says Common-Mode Range needs to be Vref/2 +-0.1V.

I have a system who's inputs to the ADC is In-=0.1V In+=1.4V(up to 1.8V), and I don't see any issues due to this.

Can someone help me understand when this specification is important.

My guess is that it has to due with the input voltage range and max input voltage.  Is this spec just to ensure a full range (+-Vref) signal stays within the absolute input voltage range?

Thanks in advance,

Shane

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    •  Analog Employees 
    on Aug 2, 2018 3:38 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

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    EZ Admin
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    •  Analog Employees 
    on Aug 2, 2018 3:38 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin
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