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如图1所示,一个双匹配运算放大器IC_1与差频放大器IC_2组成一个高频仪器放大器。表1列出了该放大器在±5V电压下运行的性能。利用这个电路可获得不同的增益,而且使该电路运行的电源电压可在±4到±16.5V的范围内变化。
As shown in Figure 1, a dual-matching op amp IC_1 and a differential amplifier IC_2 form a high-frequency instrumentation amplifier. Table 1 lists the amplifier operating at ± 5V voltage performance. Different gains can be achieved with this circuit, and the supply voltage at which the circuit operates can be varied from ± 4 to ± 16.5V.