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AD5405_four quadrant resistors

Could you explain how to deal with the AD5405 PINs of R1A to R3A in Positive
voltage output application? Connect them to GND or leave them NC? in the
evaluation board  of AD5405 in Negative voltage output configuration, it shows
that the R1A connect to RFBA and R2A to R3A are connected to GND

 

The 4-quadrant resistors allow the customer to implement different
configuration modes. For the pins you refer to,  there is no need to use them,
so these resistors can be connected to ground or left floating as there won’t
be an impact on the performance.
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