Operational transconductance amplifier with rail-to-rail input stage using single channel type MOSFETs

被引：0

作者：

Sato, T ^{[1
]}

Takagi, S ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Commun & Integrated Syst, Tokyo 1528552, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2002年 / E85A卷 / 02期

关键词：

rail-to-rail operation; OTA; MOSFET; operation region;

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：

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.

引用

页码：354 / 359

页数：6

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