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ADuC7060/61: Effects of setting PGA Common Mode bit (AMP_CM in ADC0CON MMR)

Question asked by V.M. on Jun 24, 2011
Latest reply on Jul 7, 2011 by MikeL

This was also mentioned in a separate discussion

http://ez.analog.com/message/19247#19247

however -- more info is needed...

 

What is the net effect of setting the AMP_CM in ADC0CON MMR ?

Is there any change in the allowed input levels or common-mode?

If there is no change -- what is the point of this control bit?

 

Perhaps a simple doodle of the PGA circuit would be useful here.

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