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实用新型
CN206302403U 一种高精度AD采集电路 有权

一种高精度AD采集电路
摘要：
本实用新型公开了一种高精度AD采集电路，其特征是：包括AD转换芯片U20和滤波电路，所述滤波电路包括对输入信号的滤波电路和对地信号的滤波电路，滤波电路与AD转换芯片U20连接。与现有技术相比，本实用新型能够模拟差分采样，减少电源的差模干扰和信号的差模干扰，提高采样精度。
摘要（英）：

The utility model discloses a high accuracy AD acquisition circuit, characterized by: including AD conversion chip U20 and filter circuit, filter circuit includes that filter circuit and AD conversion chip U20 are connected to incoming signal's filter circuit with to the filter circuit of earth signal. Compared with the prior art, the utility model discloses can simulate the difference sampling, reduce the differential mode interference of power and the differential mode interference of signal, improve the sampling precision.

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