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ref200的实际使用问题

Other Parts Discussed in Thread: REF200

 上面的电路在ref200上实际的接线是怎么接的这个电路的地是不是在最下面,我是个新手想做一个恒流源,但是数据手册上只有这个图我不知道哪个是这个芯片的电源。