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您好，
感谢您对TI产品的关注！
E2E论坛有一个与您一样的问题，通过E2E论坛工程师的回复（It is sourced from AVDD through a band gap reference.）可以知道，参考电压来源于 AVDD ， 但是，参考电压本身不是 AVDD 电压： e2e.ti.com/.../tlv320adc3101-adc-ref-voltage
