What is the input voltage range of AD8556 when supplied with 4V (4.096V)?

Document created by analog-archivist Employee on Feb 23, 2016
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What is the input voltage range of AD8556 when supplied with 4V (4.096V)?
AD8556 will be used to amplify the output signal from a strain gauge bridge
supplied with the same voltage (4V). When AD8556 is supplied with 5V, the input
voltage range is 2.1-2.9V according to the datasheet. The common mode voltage
from the bridge will be 2V, when supplied with 4V.

 

We do not necessary characterized these non compliance spec information.
We did some check and test of interest.
Bench data on AD8556 shows that VCMi is ratiometric with VDD-VSS.
Bench data on AD8556 shows that VCMi is ratiometric with VDD-VSS.
The table below is from the attached graphs of vosi & vout vs vcmi at 25C.
The measured values show proportionality to VDD.

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