ADL5519: output of OUTP

Document created by analog-archivist Employee on Feb 23, 2016Last modified by analog-archivist Employee on Aug 10, 2016
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I am using the EVB of ADL5519. I did some tests with the EVB. The results show
that OUTA and OUTB work well, but OUTP seems not. From the datasheet, OUTP
should be equal to OUTA-OUTB+VLVL. Could you please advise what might be wrong?

 

You are correct about the formula. The dependency seen by the customer is
caused by the fact LVL pin is floating. I suggest a known voltage be applied
from an external supply, or, install a 0 ohm resistor at R7 to apply a voltage
from VREF to the VLVL pin. VREF = 1.15 V. See the attached data.

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