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AD5640: Increasing gain

Q 

If I want an output from 0V to 3.3V (in a system with a 3.3V supply) can I put
a resistor between the output pin and the FB pin to increase the gain from 2 to
2.6?

 

A 

This is not the best approach.  The device is internally trimmed to comply with
specifications.
The device is designed for a 2.5V full scale output.
To increase this, an external amplifier should be used to increase the range.
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