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ADS7042: ADS7042电源引脚掉电时的使用疑问

Part Number: ADS7042

请教一下,我板子上ADS7042的AVDD引脚的供电电压是2.5V,DVDD引脚的供电电压是3.3V,正常工作时采集电压的范围是0V---2.5V,如果AVDD引脚和DVDD引脚掉电,但采集电压还存在,输入范围仍然是0v-----2.5V,请问ADS7042芯片是否会损坏?