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请教DAC60501内部基准电压VREFIO的问题

Other Parts Discussed in Thread: DAC60501

一个设计采用DAC60501,VDD=3.3V供电,选择内部基准电压。根据8.3.1.1说明:“VREFIO = DAC reference voltage at the VREFIO pin. Either VREFIO from the internal 2.5-V reference or VREFIO from an external reference."     得知  VREFIO=2.5V

同时根据7.3 Recommended Operationg Conditions, 当VDD=3.3V时,REF-DIV=0(无效时),VREFIO的范围是1.2V到0.5*VDD(1.2V~1.65V).

想知道VDD=3.3V时,REF-DIV=0(无效时), BUFF-GAIN=0(无效时),VREFIO等于多少?VOUT输出的电压范围是多少?

是不是VOUT最大只有0~3.3V(1.65*2),需要BUFF-GAIN=1(有效),REF-DIV=0(无效)

另外采用内部基准时,VREFIO管脚外接一个1uF电容到GND即可?

非常感谢!