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DAC8775 REF参考电压输出问题请教

vincent yin
Prodigy 10 points
Other Parts Discussed in Thread: DAC8775

     DAC8775.rar您好，我现在用DAC8775做DA输出4路电流，软件使能REFOUT，输出电压1.57v，disable REFOUT,输出电压为0V，REFOUT状态为悬空，未与其他管脚连接。附件为DAC8775的原理图，请大家帮你看下问题，谢谢。