文件名称:ADsample
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1参考电压需要足够精确,推荐使用外部高精准参考电压.
2如果PGA可调,增益系数一般是越小噪声越低.
3一般最好用到满量程,此时AD精度不浪费.
4如果有偏置,需要进行自校.
5请注意在使用DEMO板调试时,会由调试口导入PC噪声,由信号连接线导入外部噪声,因此建议使用屏蔽电缆传输信号. -A sufficiently accurate reference voltage needs to recommend the use of an external high-precision reference voltage. 2 If the PGA adjustable gain coefficient the smaller the noise is generally lower. 3 generally best to use full-scale, precision is not a waste of time AD. 4 If there is bias, since the need for school. 5 Please note that the use of DEMO board debugging, the debug port to import from PC noise, by the signal cable into the external noise, it is proposed the use of shielded cable transmission signal.
2如果PGA可调,增益系数一般是越小噪声越低.
3一般最好用到满量程,此时AD精度不浪费.
4如果有偏置,需要进行自校.
5请注意在使用DEMO板调试时,会由调试口导入PC噪声,由信号连接线导入外部噪声,因此建议使用屏蔽电缆传输信号. -A sufficiently accurate reference voltage needs to recommend the use of an external high-precision reference voltage. 2 If the PGA adjustable gain coefficient the smaller the noise is generally lower. 3 generally best to use full-scale, precision is not a waste of time AD. 4 If there is bias, since the need for school. 5 Please note that the use of DEMO board debugging, the debug port to import from PC noise, by the signal cable into the external noise, it is proposed the use of shielded cable transmission signal.
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ADsample.txt