ADC的前端设计

The Design of ADC Front-end

ADC的前端是确定模数转换器接收和采样的信号质量的关键部分,若对该级设计的重视不够,则会对系统的整体性能产生不利影响。该文通过阐述前端设计的挑战及权衡因素,使工程设计人员能够采用一些通用方法,利用变压器或放大器进行匹配设计,得到一个高性能的模拟前端。

ADC front- end is the essential component of signal quality（EVM） received or sampled by analog- to- digital converter.If no more attention is paid to the design of ADC front- end,the overall performance of the system may be affected negatively.This paper describes the challenges of ADC frontend design and factors needing consideration,based on which,the designer can deign a high-performance analog frontend,using some common methods,such as,matching design by transformer and amplifier.