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ADS1115-Q1: 设计评估

Part Number: ADS1115-Q1
Other Parts Discussed in Thread: ADS1115

请帮忙查看是否有设计问题4532.Total pressure difference .docx

  • 您好,

    拆下 ADS1115IDGSR,更换新的后,系统可以正常工作是吗?

    看电阻分压电路的参考点是B2/3/4-,而ADS1115IDGSR的参考点是B2GND,它们不是同一个参考点,这无法保证输入信号在ADS1115的输入范围内,因此测量是需保证它们的参考点一致。

    正常值=51k/51k+2M*320v=0.81

    这里分压值计算是否有误?应该是约为8V,这已经超出了ADS1115的耐压范围,这会导致ADS1115永久性损坏。