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新型宽可调范围CMOS电调谐第二代电流传输器(ECCII) 被引量：2

A New CMOS Electronically Tunable Current Conveyor with Wide Tuning Range
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摘要 提出了一种具有宽电流可调谐范围的新型CMOS电调谐第二代电流传输器(ECCII),通过引入基于差分差动电流传输器(DDCC)的对数反对数电流放大器,使电流增益通过偏置电流连续可调,在一定偏置电流下,调节系数0<k≤10。输入端采用的轨对轨结构通过在其第二级加入共源共栅电流镜,提高了电压跟随精度。采用SMIC 0.18μm CMOS工艺参数,在±1V的供电电源条件下,用Spectre对电路进行仿真。结果表明:vx/vy和iz/ix的-3 d B带宽分别为300 MHz和155 MHz,电压跟随精度为0.997,功耗为1.642 4 m W。经验证,该电路可用于设计可调谐连续时间电流模式滤波器,具有广泛的应用前景。 A new CMOS electronically tunable second-generation current conveyor（ ECCII） with wide tuning range was presented. By introducing the log-antilog current amplifier based on DDCC,the current gain was controlled electronically by adjusting the ratio of DC bias currents of the ECCII,In a certain range of the bias current,0 k≤10. The input stage adopts rail to rail structure by adding a cascode current mirror in the second level,increase the voltage tracking accuracy. Using SMIC 0. 18 μm CMOS technology,the Spectre simulation results showed that vx/ vy and iz/ ixhad- 3 d B bandwidth of 300 MHz and 155 MHz,Voltage tracking accuracy is 0. 997,DC power consumption was 1. 642 4 m W. The ECCII has comprehensive applications in the tunable current mode continuous time filters.
作者 胡许光 王卫东
机构地区 桂林电子科技大学信息与通信学院
出处 《电子器件》 CAS 北大核心 2015年第3期521-525,共5页 Chinese Journal of Electron Devices
关键词 电调谐第二代电流传输器 宽可调范围 对数反对数电流放大器 差分差动电流传输器 电流模式滤波器 electronically tunable second-generation current wide tuning range log-antilog current amplifier DDCC current mode filters
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11

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二级参考文献19

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共引文献90

同被引文献24

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  • 3XU J,WANG C H.CDTA-based resistor-less nth-order current-mode universal filter suitable for RF communication[J].Microwave Radio Freq,2013,51(4):60-67.
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  • 6ZHAO L,WANG C H.A novel low voltage low power high linearity self-biasing current-reuse up-conversion mixer[J].Wireless Pers Commun,2015,80:277-287.
  • 7XU J,WANG C H,JIN J.Current differencing cascaded transconductance amplifier(CDCTA)and its applications on current-mode nth-order filters[J].Wireless Pers Commun,2013,32:2047-2063.
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电子器件
2015年 第3期

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