高频电流模四象限CMOS模拟乘法器  

CMOS FOUR-QUADRANT ANALOG MULTIPLIER WITH HIGH FREQUENCY CAPACITY

作　　者：刘澄新[1] 贾香鸾[1] 秦世才[1] 

机构地区：[1]南开大学微电子科学系,天津300071

出　　处：《南开大学学报（自然科学版）》1999年第4期17-21,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

摘　　要：本文提出了一种新型四象限CMOS模拟乘法器,其核心组成为工作于三极管区的NMOS晶体管和高频CCII(第二代电流传输器)电路.基于2μmP阱CMOS工艺参数的模拟结果显示,当电源电压为±5V,在±4V的输入范围内,其非线性误差小于2.8‰,运算误差小于3.3‰.X输入端的-3dB带宽为22MHz,Y输入端的-3dB带宽为82MHz.A new current mode CMOS four quadrant analog multiplier consisted of current conveyors and four NMOS transistors operating in triode region is presented. This circuit has been simulated based on 2μm p well CMOS process parameters. The results show that under ±5V supply voltages and over ±4V input range, the nonlinear error is less than 2.8‰ and computation error is less than 3.3‰. The -3dB band width of Y input is 82MHz and that of X input is 22MHz.

关 键 词：电流模乘法器 CMOS 模拟乘法器 四象限 高频 

分 类 号：TP332.22[自动化与计算机技术—计算机系统结构]