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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
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什么是运算放大器的输入补偿电压？
在理想运算放大器情况下，当输入电压（Vi）为0V时，VIN(+)和VIN(-)端子的直流电压完全匹配。但实际上VIN(+)与VIN(-)端子之间的输入阻抗和输入偏置电流存在差异，导致其电压略有不同。这种称为输入补偿电压的电压差乘以增益，即可得出与理想值的输出电压偏差。
当用于传感器的放大电路时，运算放大器的输入补偿电压会导致传感器检测灵敏度产生误差。为使检测误差低于规定的容差水平，必须选用具有低输入补偿电压的运算放大器。
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