900mV differential class AB OTA for switched opamp applications

被引：82

作者：

Peluso, V ^{[1
]}

Vancorenland, P ^{[1
]}

Steyaert, M ^{[1
]}

Sansen, W ^{[1
]}

机构：

[1] Katholieke Univ Leuven, ESAT, MICAS, B-3001 Louvain, Belgium

来源：

ELECTRONICS LETTERS | 1997年 / 33卷 / 17期

关键词：

operational amplifiers; CMOS integrated circuits;

D O I：

10.1049/el:19970964

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 novel fully differential class AB OTA in standard CMOS for application with the switched opamp technique is presented. It makes use of a current buffer loop in the input stage as a low voltage current mirror. A new common mode feedback error amplifier, especially suited for the class AB OTA, is also presented. It is based on a differential stage of which the concept is introduced here. A totally new way of switching the amplifiers is introduced as well. Simulations demonstrate the operation of these novel circuits down to a 900mV supply voltage.

引用

页码：1455 / 1456

页数：2