CMOS CCCII: Structures, characteristics, and considerations
CMOS CCCII: Structures, characteristics, and considerations
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DOI：
10.1016/j.aeue.2009.03.009
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发表时间：
2010-01-01
影响因子：
3.2
通讯作者：
Sirinaovakul, Boonchareon
中科院分区：
文献类型：
--
作者：
Chaisricharoen, Roungsan;Chipipop, Boonruk;Sirinaovakul, Boonchareon
介绍了一种新的平衡差分对结构，构成了第二代电流控制传送器（CCCII），在偏置方案上做了微小的改进，并给出了更精确的特性。经典的translinear结构也被分析为明确的新结构，以提供公平的比较。作为副产品，这两种结构的设计考虑，这是用来实现两个CMOS CCCII的基础上AMS的0.35 μ CMOS工艺。HSPICE模拟CCCII的基本原理支持的看法，从分析相当不错。两个CCCII都应用了Tow托马斯双二阶的简单电流模式等效。基于99 MHz的期望极点频率，分析了双二阶响应中的明显偏差，以近似分析跨导线性结构的电流/电压传输增益差和平衡差分对结构的跨导电阻差的原因。这两种结构显然都不是完美的，因为有利弊需要权衡。平衡差分对CCCII在资源受限的情况下获得适度的性能是好的，而基于跨导线性的CCCII在没有限制的情况下可以是优秀的。(C)2009年Elsevier GmbH。All rights reserved.
The novel balanced differential-pair structure, composing a second generation current controlled conveyor (CCCII), is introduced with minor improvements in bias scheme and much more precise characterizations. The classic translinear structure is also analyzed as explicit as the novel structure to provide fair comparisons. As the by-product, the design considerations of both structures are attained, which are utilized to implement two CMOS CCCIIs based on the AMS's 0.35 mu CMOS process. HSPICE simulations on the fundamental of CCCII support the perceptions gained from analyzes quite well. The demonstrated application which is the simple current-mode equivalence of Tow Thomas biquad is applied by both CCCIIs. Based on the 99MHz desired pole-frequency, the visible deviations in biquad's responses are inspected to approximate the causes which are the awful current/voltage transfer gains of the translinear structure and the somewhat unpleasant trans-resistance of the balanced differential-pair structure. Both structures are evidently not perfect as there are pros and cons to be traded-off. The balanced differential-pair CCCII is good in obtaining moderate performances with restricted resources, while the translinear-based CCCII can be excellent if there is no limitations. (C) 2009 Elsevier GmbH. All rights reserved.