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ADS7953: ADS7953:2xVref 输入范围、REFP=2.5V 和 VA=3.3V

Part Number: ADS7953


使用ADS7953,1)在AD口给定0V,通过DSP(DSP与AD为SPI)读取为采样AD电压0.3V;在AD口给定电压值越高,通过DSP读取的采样AD电压越高(偏差越高),请问是什么原因?如何解决?谢谢!

  • 您好,

    在AD口给定0V,通过DSP(DSP与AD为SPI)读取为采样AD电压0.3V;在AD口给定电压值越高,通过DSP读取的采样AD电压越高(偏差越高)

    DSP采集的给ADS7953的输入电压吗?

    您指的AD的输入电压越高,DSP采集的偏差越大,这个偏差大概有多少,呈线性增大吗?