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CC2541 ADC question



问题:ADC采样有误差,当RT热敏电阻值变大后。如附件图片:

Rt值变大后(几K到200K),ADC采样的结果误差会越大。

ADC是使用的是P0_7口,采样分辨率12bit。电源VCC接近3.3V