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使用STM32驱动ADS1118

Other Parts Discussed in Thread: ADS1118

你们好,最近在调试ADS1118的过程中,配置为0X8382,使用单电源3.3V供电,在采集过程中,不知道为什么,会有差不多50mV的误差,采集直流电3.3V,最终只有2.88V,ADS1118采用的就是最基本的连接方式,将端口直接引出,并为加处理电路,采集用的是AN0和AN1,接上信号的正和地,因为采集的是近似直流并可能为负。刚刚调,所以有很多还不是很理解,如有不规范的地方还请大家指出,谢谢