使用运放放大,放大倍数2倍,后级空载接示波器测试,当输入是0V-3V可正常放大到0-6V,当输入为0V--3V,发现输出被限制在-2V。发现在-0.5V放大两倍还是正常的,低于-1V就无法超过-2V。信号就是DAC的直流电平。
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.