Other Parts Discussed in Thread: LM27761,
Q: 在我的电路板上,VEE18N power rail上的DAC38RF83电流消耗为340 mA。相对于数据表,这是很高的。电源原理图与EVB中的相同。我通过LM27761输出的小值串行电阻测量了它。DAC输出端接至+ 1.8V到56nH,并连接至TCN2-14+ balun(交流耦合)。EVB的电流为150 mA,两个DAC均未配置。
如此高的电流可能是什么原因?
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