The search functionality is under construction.
The search functionality is under construction.

Operational Transconductance Amplifier with Rail-to-Rail Input Stage Using Single Channel Type MOSFETs

Takahide SATO, Shigetaka TAKAGI

  • Full Text Views

    0

  • Cite this

Summary :

This paper proposes a novel method to realize an input stage for a rail-to-rail operational transconductance amplifier (OTA). The proposed input stage consists of single channel type MOSFETs. Therefore no matching is necessary between n-channel MOSFETs and p-channel MOSFETs unlike conventional methods. The proposed input stage is composed of three MOSFETs which operate in plural operation regions. Nevertheless a combination of drain currents of the three MOSFETs is proportional to an input voltage which varies between two power-supply rails. A circuit configuration to realize a rail-to-rail OTA with the proposed input stage is also proposed. The operation principle and the validity of the proposed circuit are confirmed through HSPICE simulations.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E85-A No.2 pp.354-359
Publication Date
2002/02/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category

Authors

Keyword