电子器件2024，Vol.47Issue(2)：358-363,6.DOI:10.3969/j.issn.1005-9490.2024.02.010
一种采用单运算跨阻放大器实现的模拟乘法器
An Analog Multiplier Implemented by a Single Operational Transresistance Amplifier
摘要
Abstract
The analog multiplier,which is widely used in the field of nuclear electronics,is studied,and an analog multiplier,which is implemented using a single operational transresistance amplifier(OTRA),is proposed.Firstly,based on the basic structure of operational transresistance amplifier and the input-output relations,a basic multiplier circuit based on a single OTRA is proposed.Then,in order to eliminate the influence of finite transresistance gain of OTRA on the multiplier,a scheme for implementing a small signal su-perimposed on DC bias and a multiplier structure based on MOS are proposed to compensate for high frequency applications.Its appli-cations as a square and amplitude modulator are also discussed.Finally,the proposed theoretical design is verified through PSPICE sim-ulation,which shows that the simulation results agree well with the theoretical design.关键词
电子功能部件/运算跨阻放大器/模拟乘法器/小信号分析/传输特性/频率响应/应用实例Key words
electronic functional components/operational transresistance amplifier/analog multiplier/small signal analysis/transmission characteristics/frequency response/application example分类
信息技术与安全科学引用本文复制引用
李玉琴,余金永,葛动元..一种采用单运算跨阻放大器实现的模拟乘法器[J].电子器件,2024,47(2):358-363,6.基金项目
国家自然科学基金项目(51765007) （51765007）
2020年广西高校中青年教师科研基础能力提升项目(2020KY66009)(桂教科研(2020)1号) （2020KY66009）
2019年崇左市科技计划项目(崇科FA2019010) （崇科FA2019010）
