RT
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.
输入范围为-10V~+10V。随机误差。
为了让信号源准确,我使用的是纽扣电池测的。有上下0.01V的偏差
ADS8556的参考电压引脚 (PIN 51)所接的电容10uF太大了,引起了参考电压的振荡,造成了转换结果的偏差。
数据手册25页有提到,这个电容大概用100nF到470nF左右的就好了。