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ADuCM360 ADC input voltage range by reference

Question asked by HM72 on Oct 19, 2014
Latest reply on Oct 20, 2014 by MMA

HI,

 

ADuCM360 can select internal reference (1.2V) or external reference (~AVDD).

When I select internal reference, ADC input voltage ranges are ±VREF@G=1, ±500mV@G=2, ±250mV@G=4, ...

and external reference, ranges are ±VREF@G=1, ±500mV@G=2, ±250mV@G=4, ...

 

Q1, Is VREF effective only at the time of G=1?

Q2, Is an input voltage range decided regardless of an internal/external reference at G>=2?

 

regards,

HM

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