系统级电流使能控制结构的低功耗设计

电子系统功能的增加相应地使系统的功耗增加 ,而供电电池容量不能同步增加 ,导致电池的寿命很短 ,这个矛盾迫切要求电子系统的低功耗设计。提出了一种系统级电流使能控制结构 ,可广泛地应用在 CMOS数模混合电路中 ,用于实现系统级的低功耗设计。文中给出了系统级电流使能控制结构的具体实施电路 ,详细分析了该电路的工作原理。用 TSMC0 .18μm的 CMOS模型对该电流使能控制结构电路进行了仿真 ,模拟结果表明 ,该控制方法不仅结构简单、功能正确和易于实现 ,而且实现该控制方案所必需的附加电路本身消耗的功耗极低。这一电流使能控制结构是数模混合电路系统中实现低功耗设计的一种有效方法

The Low-power Design in System Level Using Current-steering Architecture

Electronic syste m s need the low power design urgently bec ause the power of electronic systems is increasing due to the multi function and the longevity of the batteries is short ed because the increment of the capacity of batteries is limited.A low power des ign in system level using current steeri ng architecture,which can be applied to the system of CMOS mixed signal circuit widely,is presented.A prototype circuit realizing the current steering architect ure has been designed and simulated usin g the TSMC 0.18 μm library.The simulatio n results show that the current steering architecture has many advantages:the ci rcuit can be realized easily;the functio n is correct;the power of the additive c ircuits,which are used to realize the cu rrent steering architecture,is low extre mely.As a result,the low power design in system level using current steering arc hitecture is powerful in mixed signal ci rcuit.