为什么ADS1115采样后的数据总是偏大,比实际值高出十多毫伏
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建议你查一下前端电路,如果前端是运放,计算并测量一下运放的offset;如果前端是信号源,看看在信号源上加十几毫伏负的直流偏置电压,看看能不能把数据降下来。