我使用 100K 和1K (电阻精度0.1% ) 分压采集 外部0-75V电压 ,gain =1 ,根据手册 阻抗为330kΩ ,不考虑输入阻抗是101倍,但考虑输入阻抗我应该乘以多少呢? 可不可以认为1k和输入阻抗并联呢?
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