0~3V放大到-10V~+10V, 输入0V时输出-10V;1.5V时0V; 3V时正10V
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我也觉得这样可行 。 如果对精度要求不高的话 是可以这样 ,先将0~3V通过加法器偏移为-1.5V·1.5V 然后在放大7倍左右即可 ,如果要求精度较高就需要考虑输入偏置电压 CMRR等问题