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XTR111无电流输出

Other Parts Discussed in Thread: XTR111

 各位!



   我用的是STM32带DA功能的MCU,现在配合XTR111应该输出一个4-20mA的电流
但是无论如何都没有电流产生,我用一个独立的XTR111模块电路外接就可以正常使用, 那么也就是说,MCU驱动电压转电流的理论是行的通的,上传原理图,还请各位帮忙指点一下



谢谢

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