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ADUC7061 - VREF internal/external switching

Question asked by AFreitag on Feb 20, 2015
Latest reply on Feb 20, 2015 by MMA

Hi,

 

I need to switch between the external and the internal reference voltage for different analog sensor types. What happens to the VREF+/- input pins when I choose the internal reference? Is it safe to leave external circuitry (an opamp) that might output a voltage/current connected?

 

Thanks in advance!

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