AD9245 是AD 公司推出的一款14 位高速模数转换器。AD9245 具有最高80MSPS 采样率、工作带宽500MHZ。文中介绍了AD9245 的主要特点及其典型的应用电路,并给出了一个软件无线电数字中频接收系统样机中的应用实例。-AD9245 is AD the company introduced a 14-speed ADC. AD9245 80MSPS with the highest sampling rate, bandwidth 500MHZ. This paper describes the main features of AD9245 and its typical application circuit, and gives a digital IF receiver software radio system prototype application examples.