传感器输出是正负420mv 怎样将其转换为0-5V输出啊
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.
考虑两种放大:
1. 就像单电源供电运放,给输入端加一个参考电压,这样的话将输入信号抬高到正压范围,然后放大。
2. 可以通过差分运放Vout=(Vin+)-(Vin-),比如给Vin-一个负压,这样差分运放输出正压信号,然后再放大。