1. 擴展器在某一給定范圍的輸入電壓內產生較大輸出電壓的轉換器
   A transducer designed for a given range of input voltages that produces a larger range of output voltages.
2. 轉換器將數據從一種代碼轉換成另一種代碼的裝置
   A device that converts data from one code to another.
3. 就模擬輸入而言，使模數轉換器不能區(qū)別其變化的超范圍的絕對電壓值。超載值對于正輸入和負輸入可能不同。
   For analog inputs, any absolute voltage value above which the analog-to- digital converter cannot distinguish a change. The overload value can be different for plus and minus inputs.

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