一种结构简单的低压CMOS四象限模拟乘法器  

A Low Voltage CMOS Four Quadrant Analog Multiplier with a Simple Configuration

作　　者：管慧[1] 

机构地区：[1]上海交通大学微电子技术研究所

出　　处：《微电子学》1999年第3期211-214,219,共5页Microelectronics

摘　　要：提出了一种结构简单、采用有源衰减器的低压ＣＭＯＳ四象限模拟乘法器。详细分析了电路的结构和设计原理，给出了电路的ＰＳＰＩＣＥ模拟结果。模拟结果表明，当电源电压为±１．５Ｖ时，功耗小于８０μＷ，线性输入电压范围约为±０．５Ｖ；当输入电压范围限于±０．３Ｖ时，非线性误差小于１．３％；－３ｄＢ带宽约为３．２ＭＨｚ。该乘法器电路可应用于低压模拟信号处理电路中。A simple low voltage CMOS four quadrant analog multiplier using active attenuators is presented. Its basic configuration and design principle are analyzed. Results from PSPICE simulation show that the circuit has a power dissipation of 80 μ W and a full scale linear input range about ±0.5 V for ±1.5 V power supply. The nonlinear error of the multiplier is less than 1.3% with an input rang up to ±0.3 V , and the simulated -3 dB bandwidth is about 3.2 MHz . The proposed multiplier is very useful in low voltage analog signal processing applications.

关 键 词：CMOS 有源衰减器 模拟乘法器 模拟信号处理 

分 类 号：TN432[电子电信—微电子学与固体电子学] TP332.22[自动化与计算机技术—计算机系统结构]