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关于DAC161P997输出20mA电流时稳定时间过长的问题,希望TI工程师帮忙解答一下!谢谢!

Other Parts Discussed in Thread: DAC161P997

我在用DAC161P997做两线制4-20mA传感器,发现DAC161P997输出20mA时稳定的时间比较长,一般从19.994mA缓慢上升大概5~6秒后稳定在20mA。电路按照手册里的典型电路设计。请问出现这样的线性是什么原因?有什么解决方法吗?谢谢!