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集成运放的特性参数集成运放的主要特性参数如下: 开环增益A_0指不加负反馈时的电压增益,一般为80～120分贝。A_0越大越好。共模抑制比CHR如前所述,它反映了集成运放在较强的共模背景信号中分辨差模分量的能力。集成运放的CMR,一般为80～100分贝。这主要是差分输入级带来的好处。输人失调电压V_(os)在无信号输入的静态时,为使输出电压重新回到零,在输入端需加的电压叫输入失调电压。V_(os)越小越好,通常V_(os)为0.5～5毫伏。
Integrated op amp parameters The main parameters of integrated op amp parameters are as follows: Open loop gain A_0 refers to the voltage gain without negative feedback, usually 80 ~ 120 dB. A_0 the bigger the better. Common-Mode Rejection Ratio CHR As mentioned earlier, it reflects the ability of the integrated op amp to distinguish differential-mode components in a stronger common-mode background signal. CMR integrated op amp, usually 80 to 100 dB. This is mainly the differential input stage brings the benefits. Input offset voltage V os (os) In the absence of signal input static, in order to make the output voltage back to zero, the input voltage to be added called the input offset voltage. V_ (os) the smaller the better, usually os_0.5 ~ 5 mV.