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LM393 question

Other Parts Discussed in Thread: LM393

hello,

在使用LM393时,请帮忙确认下是否可以?

1)LM393输入电流有没有限制?在输入脚输入3mA的电流进去有没有问题?

2)如附件电路图,可以理解为3.3V经过1.5K的电阻直接进去LM393的3脚,看看有没有问题?mcp4017是个10k的滑动变阻器。