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ADS8320精度可以到多少

Other Parts Discussed in Thread: ADS8320, LM258

我在使用ADS8320,使用的是基准电压2.5V (LT1461),采集4-20ma的信号(AD420产生),采集的数据后4位波动很大,现在只能降级为12位AD使用,采样速度1MS读一次