There may be saturation in the differential circuit built with the operational amplifier (op amp), which causes that the relationship between input and output is not differential expression.
用运算放大器构造的微分电路可能存在饱和现象，导致输出与输入电压之间不满足微分关系，使微分电路失去应有性能。
Detecting circuit consists of a fully differential operational amplifier and an instrument amplifier.
探测电路由全差分运算放大器和仪表放大器组成。
The signal of acidity electrode is detected by a differential amplifier circuit, which consists of operational amplifiers TLC2254 with high input impedance and low drift.
采用高阻、低漂移运放t LC 2254组成高阻差动放大电路用于酸度电极信号测量。
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