On the basis of analyzing the common methods of background magnetic field compensation, a new automatic compensation method based on sampleandholdcircuit is put forward.
在分析磁通门常用背景磁场补偿方法基础上,提出一种新的采样保持电路自动补偿方法。
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The whole circuit consists of SampleandHoldCircuit, the Multiplicative A/D Converter, the Sub-ADC, the Digital Calibration Circuit, the Clock Generator and the Time Synchronizer.
The sampleandholdcircuit is employed by the bottom plate sampling technique, which could not only cancel the charge injection error but also eliminate the effect of clock feed-through.