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https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1107925/dac38j84-output-impedance-to-be-matched-to-calculate-trace-width
您好！
DAC38J84 IC 的数据表中提到、模拟输出的输出阻抗为300k 欧姆。
如果我匹配50欧姆或100欧姆、则计算布线宽度。
您可以参考数据表和以下应用手册。DAC 输出需要下拉电流源驱动器。 布线宽度取决于您的下拉值
https://www.ti.com/lit/ug/slua647a/slua647a.pdf?ts=1654696461861&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FDAC3484
－Kang
