Other Parts Discussed in Thread: LM317
TI的同事你们好,请帮忙推荐一款恒流源IC
应用场合:替代万用表Agilent 34401A中的欧姆电流源的电路,用于测量二极管的正向导通电压;
具体要求:负载接地型恒流源,工作电压3.3-5V作用,灌电流100mA以内
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HI
TI的电流源非常少,见如下list: https://www.ti.com.cn/zh-cn/power-management/voltage-reference/current-reference/products.html
没有合适的芯片可选,不过你可以看看LM317系列是否符合,见datasheet :https://www.ti.com.cn/cn/lit/ds/symlink/lm317.pdf 第15页图18.