一种采用差分电流传送带的高增益、低偏置电流模式仪表放大器

2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS) Pub Date : 2015-12-01 DOI:10.1109/ICECS.2015.7440251

U. Çini, E. Arslan

{"title":"一种采用差分电流传送带的高增益、低偏置电流模式仪表放大器","authors":"U. Çini, E. Arslan","doi":"10.1109/ICECS.2015.7440251","DOIUrl":null,"url":null,"abstract":"In this work, a current-mode high CMRR and low offset instrumentation amplifier is proposed. In the structure, only differential difference current conveyors (DDCC) are employed. The offset of the instrumentation amplifier is suppressed using an integrator feedback stage. The CMRR of the system is simulated using mismatch models for the DDCC elements employed. The CMRR of the instrumentation amplifier is independent of resistor mismatches and high CMRR is achieved if good matching of the differential transistors of each current conveyor is provided. The proposed instrumentation amplifier is designed using 0.35μm technology and simulated using HSPICE. The designed instrumentation amplifier provides high CMRR with low offset and it is especially suitable for AC coupled measurements. The simplicity of the design structure is the main advantage of the provided design where only DDCC elements are required for high CMRR and high output swing.","PeriodicalId":215448,"journal":{"name":"2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"9","resultStr":"{\"title\":\"A high gain and low-offset current-mode instrumentation amplifier using differential difference current conveyors\",\"authors\":\"U. Çini, E. Arslan\",\"doi\":\"10.1109/ICECS.2015.7440251\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this work, a current-mode high CMRR and low offset instrumentation amplifier is proposed. In the structure, only differential difference current conveyors (DDCC) are employed. The offset of the instrumentation amplifier is suppressed using an integrator feedback stage. The CMRR of the system is simulated using mismatch models for the DDCC elements employed. The CMRR of the instrumentation amplifier is independent of resistor mismatches and high CMRR is achieved if good matching of the differential transistors of each current conveyor is provided. The proposed instrumentation amplifier is designed using 0.35μm technology and simulated using HSPICE. The designed instrumentation amplifier provides high CMRR with low offset and it is especially suitable for AC coupled measurements. The simplicity of the design structure is the main advantage of the provided design where only DDCC elements are required for high CMRR and high output swing.\",\"PeriodicalId\":215448,\"journal\":{\"name\":\"2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)\",\"volume\":\"19 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"9\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICECS.2015.7440251\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICECS.2015.7440251","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 9

摘要

在这项工作中，提出了一种电流型高CMRR和低失调的仪表放大器。在结构上，只采用差分电流输送机(DDCC)。利用积分器反馈级抑制仪表放大器的偏置。利用DDCC单元的失配模型模拟了系统的CMRR。仪表放大器的CMRR与电阻失配无关，如果每个电流输送器的差动晶体管匹配良好，则可以实现高CMRR。采用0.35μm工艺设计了仪表放大器，并利用HSPICE进行了仿真。所设计的仪表放大器具有高的CMRR和低的失调，特别适合于交流耦合测量。设计结构的简单性是所提供的设计的主要优点，其中只需DDCC元件即可实现高CMRR和高输出摆幅。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

A high gain and low-offset current-mode instrumentation amplifier using differential difference current conveyors

In this work, a current-mode high CMRR and low offset instrumentation amplifier is proposed. In the structure, only differential difference current conveyors (DDCC) are employed. The offset of the instrumentation amplifier is suppressed using an integrator feedback stage. The CMRR of the system is simulated using mismatch models for the DDCC elements employed. The CMRR of the instrumentation amplifier is independent of resistor mismatches and high CMRR is achieved if good matching of the differential transistors of each current conveyor is provided. The proposed instrumentation amplifier is designed using 0.35μm technology and simulated using HSPICE. The designed instrumentation amplifier provides high CMRR with low offset and it is especially suitable for AC coupled measurements. The simplicity of the design structure is the main advantage of the provided design where only DDCC elements are required for high CMRR and high output swing.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)

自引率

0.00%

发文量