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ADS1118在零下25度左右数据不准确

Other Parts Discussed in Thread: ADS1118

进行高低温测试,其他温度情况下,ADC测试温度比环境温度高2~6度,但在-25度附近(±5°),ADS1118读取的温度却比环境温度小3~4度,而且此时测量的电压数据也比其他条件下高10mv左右。这是什么原因造成的?该如何处理呢?