电子信息工程专业英语复习题

Translate the following passages into Chinese or English 。

Unit 2
1、It is extremely hard to definite dynamic range （DR ）for an op amp ，so let is start with a digital-to-analog converter （DAC ） where DR is define as the ratio of the Maximum output voltage to the smallest output voltage the DAC can produce
译文：由于很难定义运算放大器的“动态范围”（DR ），因此先给“数模转换器”（DAC ）的动态范围下定义。

DAC 的动态范围就是其最大输出电压和最小输出电压之比。

2、The same definition of DR can be used for an op amp ，and the maximum output voltage swing equals OUTMAX V 。

This output voltage swing is defined as the maximum output voltage the op amp can achieve （OH V ） minus the minimum output voltage the op amp can achieve （OL V ）。

OH V and OL V are easily obtainable from an op amp IC data sheet 。

译文：这个“动态范围”的定义也可用于运算放大器，其最大输出电压摆幅为OUTMAX V 。

输出电压摆幅定义为运算放大器能达到的最大输出电压（OH V ）减去最小输出电压（OL V ）。

从运放集成电路数据手册中，可以很容易获得OH V 和OL V 。

3、电压和水有相似之处——当其供应量很少时，人们才会认识到其价值。

低电压系统（此处是指低于5V 的单电源供电）让我们认识到电压的价值。

译文：In one respect ，voltage is like water ：you don't appreciate its value until your supply runs low ；Low —voltage systems ，defined here as a single power supply less than 5V ，teach us to appreciate voltage 。

4、在电子技术个领域中，欧姆定律都是基本定律。

欧姆定律可表述为R I V ∙=。

欧姆定律可应用于单个器件、一组器件或一个完整电路。

当已知流过电路中各部分的电流时，其电压降可由电阻和电流的乘积获得。

译文：Ohm’s law is stated as R I V ∙= ,and it is fundamental to all electronics 。

Ohm’s law can be applied to a single component,to any group
of component,or to a complete circuit。

When the current flowing through any portion of a circuit is know ,the voltage dropped across that portion of the circuit is obtained by multiplying the current times the resistance。

5、电路就是无源器件和有源器件的组合。

器件按照特定方式排列，以完成期望的功能。

器件的排列就形成了一个电路，或叫做电路结构。

模拟电路设计就是开发各种电路结构。

译文:Circuits are a mix of passive and active components.The components are arranged in a manner that enables them to perform some desired function.The resulting arrangement of components is called a circuit or sometimes a circuit configuration.The art portion of analog design is developing the circuit configuration.。