基于AD603的一种微弱信号宽带放大器设计

Design of the Weak Signal Wideband Amplifier Based on AD603

在通信系统中接收机天线上接收到的一般都是毫伏级的微弱信号,为能够对其进行分析处理,必须进行前置放大.文章设计一种基于运放AD603的微弱信号宽带放大电路作为前置放大电路,仿真表明该前置放大电路稳定可靠、性能优良.

The weak signal received by the aerial of receiver in communication systems is usually measured by millivolt. In order to analysis and deal it, the weak signal must be pre - amplified. A kind of weak signal wideband amplifier circuit based on AD603 is designed in this paper as the pre - amplification circuit . The simulation show that the pre - amplification circuit is stable, reliable and excellent in performances.