ADC of ADuC7026

Hi

Could you please tell me the following questions?

The ADC of ADuC7026 accepts an analog input range of 0 V to VREF(2.5V).

But I want to use an analog input range of 0V to 3.3V.

Is it possible to use an analog input of 0 to 3.3V?

If it is possible, could you please tell me how to set?

Thanks and Best Regards,

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