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高精度电流模式四象限乘法器的设计与应用 被引量：3

Design and Application of a High Precision Current-Mode Four-Quadrant Multiplier
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摘要 在AB类电流镜基础上,采用两个跨导线性环电路,设计了一款高精度电流模式四象限模拟乘法器。通过引入参考电流,增大了乘法器输入输出范围。将提出的乘法器作为增益控制单元与基本差分式OTA相连,实现了一款跨导增益宽范围线性可调的OTA。采用TSMC 0.35μm CMOS集成工艺,对实现的乘法器和OTA进行Pspice仿真,结果表明,乘法器与OTA具有精度高、输入范围广、线性度好、功耗低等优点,可作为基本模块应用于多种电流模式信号处理系统中。 A high precision current-mode four-quadrant multiplier was designed by employing two translinear loops based on the class-AB current mirror. By setting a reasonable reference current, both the input and output range of the multiplier could get a wider value. So it could he combined with the basic OTA to act as a gain control cell to implement a widely and linearly tunable OTA. The multiplier and the proposed OTA was simulated and analyzed with Pspice with the TSMC 0. 35 μm CMOS technology parameters. The results showed that the proposed multiplier and the OTA had the merits of high precision, wide input range, good linearity and low power consumption. So both the multiplier and the OTA could be used as a basic block for current-mode circuit.
作者 吴湘锋 李志军 张黎黎
机构地区 湘潭大学信息工程学院
出处 《微电子学》 CAS CSCD 北大核心 2015年第4期488-491,496,共5页 Microelectronics
基金 国家自然科学基金资助项目(61176032)
关键词 CMOS 跨导线性 乘法器 OTA 神经网络 CMOS Translinear Multiplier OTA Neural network
分类号 TN432 [电子电信—微电子学与固体电子学]
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参考文献12

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二级参考文献22

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微电子学
2015年 第4期

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