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集成运算放大器就使用电源的情况来说共有两种:一种是双电源集成运算放大器,它需要使用正负两组电源,在交流信号作用下,可以得到正负两种输出;一种是单电源集成运算放大器,它适宜于单极性信号的直流放大,在交流信号作用下,只能得到一种极性的输出.这里介绍的是给集成运算放大器加适当的偏置和耦合电路,就可以使集成运算放大器一方面使用单电源,另一方面在交流信号作用下,又可以得到失真度小的正负两种输出.
There are two kinds of situations that the integrated operational amplifier uses the power: One kind is the dual power integrated operational amplifier, it needs to use two positive and negative power supplies, can receive positive and negative two kinds of outputs under the action of the exchange signal; One kind is the single Power integrated operational amplifier, which is suitable for unipolar DC signal amplification, the role of the AC signal can only be a polar output. Here is the integrated op amp plus the appropriate bias and coupling circuit Can make integrated operational amplifier on the one hand use a single power supply, on the other hand in the exchange of signals, but also can be small distortion of positive and negative two kinds of output.