• RE: dac8562的ref引脚

    您好, 应该是不可以的,在 dac8562 数据手册8.3.3.2 Power-On Reset to Mid-Scale章节最后一句话:If using an external reference, it is acceptable to power on the VREFIN pin either at the same time as or after applying AVDD. VREFIN 应该是只能同时或AVDD之后上电。