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在有噪声（如工业）环境中的精确模拟数据采集常常需要对信号源相互进行电隔离以及与数据系统接地端进行电隔离。隔离放大器等商用装置可以解决这一问题，但是，它变得凌乱不堪，因为每个输入通道需要隔离的功率源。这里描述的电路可提供三个通道的光隔离输入，可以用于很多精
Accurate analog data acquisition in noisy (eg industrial) environments often requires galvanic isolation of signal sources from one another and galvanic isolation from the data system ground. Commercial devices such as isolation amplifiers solve this problem, but it becomes cluttered because each input channel requires an isolated power source. The circuit described here provides three channels of optically isolated inputs that can be used in many precision