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VCOM on ADL5562

Question asked by Guillaume.Blan on May 24, 2012
Latest reply on May 24, 2012 by harryh

Hello,

 

I have designed a board with 16 ADL5562. I need to set the VCOM of all these diff.amp. at 1V. So I used a single LP3879-1.0 (http://www.ti.com/lit/ds/symlink/lp3879.pdf)  to directly feed all the ADL5562 VCOMs. But unfortunately the voltage delivered by this regulator is unable to overide the internal VCOM (VCC/2=1.65V).

 

Any suggestions ?

 

Cordially,

 

Guillaume.

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