虽然早期的EDA侧重于数字电路，许多新的工具将模拟设计和混合系统。
While early EDA focused on digital circuitry, many new tools incorporate analog design, and mixed systems.
在混合信号电路中，考虑到功耗和性能的要求，数字电路低电压工作而模拟电路高电压工作；
In mix signal circuits, digital circuits operate at a lower voltage and analog circuits at a higher one, so as to meet the requirement of power dissipation and performance.
作为模拟电路与数字电路的接口电路，高性能的模数转换器对整个设计系统的实现非常重要。
As a special interface connected with analog and digital circuits, high performance analog-to-digital converter is much more important in whole system design.
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