Low-voltage CMOS operational amplifiers with wide input-output swing based on a novel scheme

被引：33

作者：

Ramírez-Angulo, J

Torralba, A

Carvajal, RG

Tombs, J

机构：

[1] New Mexico State Univ, Klipsch Sch Elect & Comp Engn, Las Cruces, NM 88003 USA

[2] Univ Seville, Escuela Super Ingn, Dept Ingn Elect, Seville, Spain

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2000年 / 47卷 / 05期

关键词：

CMOS analog integrated circuits; operational amplifiers;

D O I：

10.1109/81.847886

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A scheme to achieve low-voltage wide-bandwidth operation of CMOS op -amps with rail-to-rail input and output swing and constant gm is presented. It is based on a novel concept that uses a floating voltage controlled voltage source in the feedback path of the op amp in order to keep its input terminals close to one of the supply rails. Postlayout simulations on a 1.2-V rail-to-rail op amp with 13 Mhz GB are presented which verify the proposed scheme.

引用

页码：772 / 774

页数：3

共 6 条

[1] Active series switch for switched-opamp circuits [J].