ADC ADS8675的规格书上提到：AVDD范围：4.75~5.25，TYPE值是5V，DVDD范围：2.7~AVDD，TYPE值是3.3V
盼指教：在实际应用中AVDD接5V，DVDD可否也接5V? SPI数字接口能否可靠工作？
规格书上讲：
9 Power Supply Recommendations
The device uses two separate power supplies: AVDD and DVDD. The internal circuits of the device operate on
AVDD and DVDD is used for the digital interface. AVDD and DVDD can be independently set to any value within
the permissible range.
设备内部电路运行在AVDD上，数字接口采用DVDD。AVDD和DVDD可以分别设置为允许范围内的任何值。
