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Driving AD8331 VCM from external source

Question asked by 6j5 on Jul 20, 2011
Latest reply on Jul 26, 2011 by 6j5

Hello again

 

The data 8331 VGA data sheet states that the VCM default 2.5V can be overridden to 1.5 - 3.5V with an external low impedance source( <30ohms).

 

However the AD9251 ADC I intend to use requires 0.9V ( 1V) common mode.

 

Can the 8331 VCM be operated safely at these lower levels?

 

thanks

George  

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