一种可调高线性度跨导器  

A Tunable Transconductor With High Linearity

作　　者：刘弘[1] 董在望[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《电子学报》2002年第9期1282-1284,共3页Acta Electronica Sinica

摘　　要：本文提出了一种新的跨导器结构,它采用CMOS复合对管实现,可以通过调节栅极电压改变跨导器的跨导值,适合应用于高线性的连续时间滤波器.仿真结果表明,在供电电压为5伏,输人差分信号峰峰值为2.3伏的情况下,可以达到小于0.5％的总谐波失真.This paper proposes a new transconductor circuit which adopts CMOS double pairs. It has a transconductance linearly variable by a gate voltage, and suitable for application to highly linear continuous-time filters. Simulation results show that the total harmonic distortion (THD) of the output current is less than 0.5% for the differential input signal of 2.3V(peak-to-peak)when the supply voltages are 5V.

关 键 词：线性度 跨导器 二次效应 CMOS复合对管 跨导值 模拟集成电路 

分 类 号：TN431.1[电子电信—微电子学与固体电子学]