基于Multisim 8的弱信号放大电路的设计与仿真  

Design and Simulation of Amplification Circuit for Weak Electrical Signals by Multisim

作　　者：吴旭华[1] WU Xu-hua （College of Engineering, Anhui Xinhua University, Hefei 230088, China）

机构地区：[1]安徽新华学院工学院,安徽合肥230088

出　　处：《电脑知识与技术》2008年第6期1322-1324,共3页Computer Knowledge and Technology

摘　　要：介绍了ICL7650斩渡集成运放的性能，并采用该器件设计了一个弱信号的前置放大电路，通过mulfisim8软件进行仿真和测试，其增益、幅频特性、信噪比等性能指标都能达到设计的要求。该电路结构简单，对直流、低频微弱电信号放大具有一定的参考使用价值。The capability of ICL7650 chip operational amplifier is introduced in this paper,one kind of weak signal pre-amplification circuit is implemented by the amplifier and it＇s gain amplitude-frequency characteristic,signal-to-noise and so on all achieve the design by Multisim 8 simulation and testing. This circuit is of simple structure , which has certain reference use value to directs current,the low frequency weak electrical signal amplification,

关 键 词：运算放大器 微弱电信号 ICL7650 仿真 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论;自动化与计算机技术—计算机科学与技术]