现需用CC2541 AIN0–AIN1采集差分数据,AIN0及AIN1输入本身约1.6V,但其压差范围只几毫伏到几十毫伏。
请问能否用其内部运放来放大处理,以便有效采集这毫伏级的压差。
还请指导,谢谢!
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谢谢大秦正声的解答。
现我已该用CC2540实现了差分放大功能,我的运放初始化函数: