宽范围CMOS差分式双端输入-输出电流传输器  

Wide Range CMOS Differential Voltage Current Conveyor with Double Input and Double Output Terminal

作　　者：肖君宇[1] 陈向东[1] 苏长远[1] 

机构地区：[1]西南交通大学信息科学与技术学院微电子与固体电子研究所,成都610031

出　　处：《微电子学》2010年第1期37-40,共4页Microelectronics

基　　金：国家自然科学基金资助项目(60572026);四川省学术与技术带头人培养基金重点资助项目(Q024131103010018);西南交通大学科技发展基金资助项目(2006A05)

摘　　要：基于宽线性跨导及共模检测电路,设计了一种改进型差分式双端输入-输出电流控制电流传输器电路(DIDOCC)。该全差分式电路具有电流控制功能,并能抑制偶次谐波和共模干扰。仿真结果表明,在-1.5～+1.5V供电电压下,总静态电流约为300μA,X1、X2端差分电压输入动态范围为-0.9～0.9V。基于DIDOCC电路,设计了一种全差分二阶滤波器,仿真结果与理论值较为吻合。文中所有电路均基于0.25μmCMOS工艺。An improved CMOS differential voltage current conveyor with double input and double output terminal （DIDOCC） was presented, based on wide linear transconductance and common mode detection circuit. The circuit has current-controlled function and restrains even harmonics and cornmon-mode interference. Simulation results showed that, at supply voltage between -1.5 V and 1.5 V, the circuit had a total static current of about 300 rnA and a differential voltage input dynamic range from -0. 9 V to 0. 9 V. Based on the DIDOCC circuit, a fully-differential second-order bandpass filter was designed, and simulated results were in good agreement with theoretic calculation.

关 键 词：电流传输器 滤波器 电流模式 差分电路 

分 类 号：TN432[电子电信—微电子学与固体电子学] TN722.5