为了扩展库仑测量范围，使用外部电容器作为反馈元件。

To extend the coulombs ranges, an external capacitor is used as the feedback element.

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许多时钟电路也与电阻器和电容器一起使用作为低成本的时间组分或驱动外部输入。

Many clock circuits also work with a resistor and capacitor as low-cost timing components or can be driven from an external source.

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此外，在多数情况下，可以使用小型陶瓷电容器且不再需要外部组件。

Further, in most of these cases small ceramic capacitors can be used and there no further need for external components.

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