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DAC7564 参考电压异常

Other Parts Discussed in Thread: DAC7564

最近使用DAC7564遇到一个奇怪的问题,一批板子里面有2片板子的2.5V基准电压输出异常,一片输出5V,另外一片输出2.7V,但是多启动几次电压又正常了,有没有人遇到过同样的问题?