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项目需要给传感器供恒流源，50mA左右。传感器电阻变化快，需要电流响应时间小于2us的恒流源，感谢！
Hi
TI的恒流源芯片非常少： https://www.ti.com.cn/zh-cn/power-management/voltage-reference/current-reference/products.html
没有50mA的恒流源。
