• DocumentCode
    2233543
  • Title

    A rail-to-rail, constant-Gm, 1-volt CMOS opamp

  • Author

    Bahmani, Faramarz ; Fakhraie, S.M. ; Khakifirooz, A.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Tehran Univ., Iran
  • Volume
    2
  • fYear
    2000
  • fDate
    2000
  • Firstpage
    669
  • Abstract
    A rail-to-rail, constant-gm, 1-volt only, full-CMOS opamp is presented. The opamp has a complementary PMOS/bulk-driven input stage with a feedback circuit to equalize gm, and a class AB output stage, which provide input and output rail-to-rail operation. HSPICE simulations are performed using BSIM 3.3 models of a 0.8 μm CMOS process. This opamp has a DC gain of 45.1 dB, unity-gain bandwidth of 1.7 MHz, and phase margin of 63.4°
  • Keywords
    CMOS analogue integrated circuits; SPICE; feedback amplifiers; low-power electronics; operational amplifiers; 0.8 micron; 1 V; 1.7 MHz; 45.1 dB; BSIM 3.3 model; CMOS opamp; HSPICE simulation; class AB output stage; complementary input stage; constant transconductance feedback circuit; low voltage analog circuit; rail-to-rail operation; Analog circuits; Bandwidth; CMOS process; Circuit simulation; Feedback circuits; MOSFETs; Rail to rail operation; Semiconductor device modeling; Threshold voltage; Very large scale integration;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
  • Conference_Location
    Geneva
  • Print_ISBN
    0-7803-5482-6
  • Type

    conf

  • DOI
    10.1109/ISCAS.2000.856417
  • Filename
    856417
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2233543