This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

关于DAC902外接运放 opa2690

  DAC输出端不是已经得到了模拟信号吗,我用示波器测得波形还不错,为什么后面还要外接一运放呢,这个运放有什么作用,缓冲吗,缓冲什么 ,还有就是接的运放芯片为什么必须是含有两个运放的。请大神们解答。