单电源BiCMOS四象限模拟乘法器的研究与设计  

Study and design of a singal-power supply BiCMOS four-quadrant analog multiplier

作　　者：王进军[1] 史永胜[1] 杨锋[2] 阎晓莺[3] 

机构地区：[1]陕西科技大学电气与信息工程学院,陕西西安710021 [2]西安工业大学计算机学院,陕西西安710032 [3]西安石油大学计算机学院,陕西西安710065

出　　处：《西北大学学报（自然科学版）》2007年第5期743-747,共5页Journal of Northwest University（Natural Science Edition）

基　　金：2005年西安-应用材料创新基金资助项目(ZX05097-XA-AM-200514)

摘　　要：目的给出一种单电源BiCM0S四象限模拟乘法器的电路结构。方法采用电压平移技术和带有共模反馈的全差分折叠共源共栅OTA以提高传统四象限模拟乘法器线性输入范围。结果在5 V单电源供电情况下,该乘法器的输入线性范围约为±2.5 V,当输入电压范围限于±2 V时,总谐波失真和非线性误差均小于0.9%,-3 dB带宽大于100 MHz,功耗小于4.9 mW。结论该单电源BiCM0S四象限模拟乘法器具有良好的线性度和较大的-3dB带宽,以及较强的抗噪能力和抑止共模干扰信号的能力,该乘法器可以广泛地应用于模拟信号处理系统和数模混合系统中。Aim To give a structure of singal-power supply BiCMOS four-quadrant analog multiplier circuit.Methods Using voltage translation technology and a full difference cascade amplifier with common feedback improved the linear input arrange of the normal Four-quadrant Analog Multiplier.Results Results from the HSPICE show that Under a power supply of 5V,the full-scale linear input range of this multiplier is about±2.5V;When the input voltage is ranged up to ±2V,both the total harmonic distortion and non-linearity error are less than 0.9%.The-3dB bandwidth is more than 100MHz.The power dissipation is less than 4.9mW.Conclusion This Singal-power supply BiCMOS four-quadrant analog multiplier has a favorable full-scale linear input range,a wider-3dB bandwidth,has a strong ability of anti-noise ability and a strong ability of rejection common mode of interferential sigal,which can be widely used for the system of analog sigal processing and mixed sigal processing.

关 键 词：四象限模拟乘法器 BICMOS OTA 

分 类 号：TN431.1[电子电信—微电子学与固体电子学]