A new architecture for rail-to-rail input constant-gm CMOS operational transconductance amplifiers

被引:0
|
作者
Ahmadi, MM [1 ]
Lotfi, R [1 ]
Sharif-Bakhtiar, M [1 ]
机构
[1] Sharif Univ Technol, Dept Elect Engn, Tehran, Iran
关键词
rail-to-rail; transconductance; current summation; floating current source; input stage; operational transconductance amplifier;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
A new architecture for constant-g. rail-to-rail(R-R) input stages is presented that has less than 5% deviation in g. over the entire range of the input common-mode voltage. Furthermore, a new structure for folded cascode amplifier based on the use of a floating current source is presented. Employing these techniques a low-power operational transconductance amplifier(OTA) with 100MHz unity-gain bandwidth, 106dB gain, 60degrees phase margin, 2.65V swing, and 6.4nV/rootHz input-referred noise with R-R input common-mode range is realized in a 0.8mum CMOS technology. This amplifier dissipates 10mW from a 3V power supply.
引用
收藏
页码:353 / 358
页数:6
相关论文
共 50 条
  • [1] A novel constant-gm rail-to-rail input stage for operational amplifiers
    Chen, Zhizhi
    Wang, Qian
    Li, Xi
    Song, Sannian
    Chen, XiaoGang
    Chen, HouPeng
    Song, Zhitang
    [J]. IEICE ELECTRONICS EXPRESS, 2023, 20 (15) : 1 - 6
  • [2] Constant-Gm, Rail-to-Rail Input Stage Operational Amplifier in 0.35μm CMOS
    Hassanzadeh, Ali
    Ahmadzadeh-Khosroshahi, Nader
    Kouzekanani, Z. D.
    Sobhi, J.
    Andalib, Ali Reza
    [J]. NETWORK AND ELECTRONICS ENGINEERING, 2011, 11 : 37 - 43
  • [3] Low Current Constant-gm Technique for Rail-to-Rail Operational Amplifiers
    Veselu, Adrian Constantin
    Stanescu, Cornel
    Brezeanu, Gheorghe
    [J]. CAS 2020 PROCEEDINGS: 2020 INTERNATIONAL SEMICONDUCTOR CONFERENCE, 2020, : 253 - 256
  • [4] A CMOS FTFN Realization with Constant-gm Rail-to-Rail Input Stage
    Sayginer, Mustafa
    Altun, Mustafa
    Kuntman, Hakan
    [J]. 2008 IEEE MEDITERRANEAN ELECTROTECHNICAL CONFERENCE, VOLS 1 AND 2, 2008, : 400 - +
  • [5] Low-voltage constant-gm rail-to-rail CMOS operational amplifier input stage
    Lu, Yan
    Yao, Ruo He
    [J]. SOLID-STATE ELECTRONICS, 2008, 52 (06) : 957 - 961
  • [6] A Low Power Constant-Gm Rail-to-Rail Operational Transconductance Amplifier by Recycling Current
    Zhao, Xiao
    Fang, Huajun
    Xu, Jun
    [J]. 2011 INTERNATIONAL CONFERENCE OF ELECTRON DEVICES AND SOLID-STATE CIRCUITS (EDSSC), 2011,
  • [7] Constant-gm techniques for rail-to-rail CMOS amplifier input stages:: A comparative study
    Yan, SL
    Hu, JY
    Song, TY
    Sánchez-Sinencio, E
    [J]. 2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS, 2005, : 2571 - 2574
  • [8] Rail-to-Rail Operational Amplifier with Stabilized Frequency Response and Constant-gm Input Stage
    Baxevanakis, Nikolaos
    Georgakopoulos, Ioannis
    Sotiriadis, Paul P.
    [J]. 2017 4TH PANHELLENIC CONFERENCE ON ELECTRONICS AND TELECOMMUNICATIONS (PACET), 2017, : 109 - 112
  • [9] Rail-to-rail constant-gm operational amplifier for video applications
    Carrillo, JM
    Duque-Carrillo, JF
    Ausín, JL
    Torelli, G
    [J]. INTEGRATION-THE VLSI JOURNAL, 2004, 37 (01) : 1 - 16
  • [10] Novel and robust constant-gm technique for rail-to-rail CMOS amplifier input stages
    Yan, SL
    Hu, JY
    Song, TY
    [J]. 2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS, 2005, : 2563 - 2566