过去,人们通常采用二极管来构成各种函数放大器,现在随着集成电路元件密度的增加,多个运放和电压比较器已能集成在一块IC 片中,因此,我们已有可能采用比较复杂的电路来构成函数放大器,以得到更佳的性能。这里我们介绍一种用窗口比较器构成的函数放大器,并举一例说明如何利用它对一测温仪的输出电压V _((?)温)进行函数放大,以得到直观的数字温度显示。 In the past, diodes were commonly used to form various functional amplifiers. Nowadays, with the increase of the density of integrated circuit components, multiple operational amplifiers and voltage comparators can be integrated in one IC chip. Therefore, we have probably adopted the more complex Circuit to form a functional amplifier for better performance. Here we introduce a functional amplifier composed of a window comparator, and give an example to illustrate how to use it to functionally amplify the output voltage of a thermometer V ((?)) To obtain an intuitive digital temperature display.