Questions about the current range of AFE44S30

Hi,

I have bought AFE4404EVM from your company. According to the data table, its LED current is 0-50mA (the maximum can be extended to 100mA), but actually the current is below 10mA when we use it to test blood oxygen concentration. Now I plan to buy AFE44S30EVM, according to the data table, The LED current range of this product is 25-250mA. The LED current range of other models, such as AFE4950 and AFE49i30, is 25-250mA. Why is this current range so different from that of AFE4404? If I want to use AFE44S30, can the LED work properly under a current of less than 25mA or 10mA? We also wondered how such a large current could be applied to any situation.

Looking forward to your reply, thank you!

Amy Luo：

您好，

感谢您对TI产品的关注！由于AFE4x系列产品属于信息受限制产品，请您发送英文邮件至biosensing_afe-support@list.ti.com获取技术支持。该产品是由美国的工程师团队支持， 需要用英语沟通。

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