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ADS1282与MAG648之间的硬件连接

Other Parts Discussed in Thread: ADS1282

各位老师好!

        我想用ADS1282采集前端传感器的输出信号。已知传感器的输出是一对差分信号,每根线的电压范围是1.65±1.5V,即0.15V~3.15V。请问ADS1282的AVDD、AVSS、VREFP、VREN应该怎么连接?

谢谢!

  • 您好,

    电路所需输入信号范围是0.15V~3.15V,芯片单电源供电最大到5.5V,建议最大使用到5V,因此需要使用双电源供电,且供电电压不能使用对称电压。根据计算AVSS≤-0.55V,AVDD≥4.4V,且AVDD-AVSS≤5V.

    VREFP、VREFN根据供电电压和数据手册需满足以下条件: