问:我的ADC没有输入信号,为什么输出数据位仍在不断变化?答:不熟悉高速ADC的人可能会认为:在静态模拟输入下,转换器的数字输出将保持恒定。这种看法就如同期望在没有输入信号的情况下运算放大器仅输出直流失调电压误差。如果 Q: My ADC does not have an input signal and why is the output data bit still changing? Answer: Those unfamiliar with high-speed ADCs might think that the converter’s digital output will remain constant under static analog inputs. This view is just as expected in the absence of input signal op amp output only DC offset voltage error. in case