Gain and Bandwidth Enhanced Class-AB OTAs

被引：0

作者：

Pourashraf, Shirin ^{[1
,2
]}

Ramirez-Angulo, Jaime ^{[1
,2
,3
]}

Roman-Loera, Alejandro ^{[4
]}

Gangineni, Manaswini ^{[1
,2
]}

机构：

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

[2] New Mexico State Univ, Comp Engn Dept, Las Cruces, NM 88003 USA

[3] INAOE, Puebla, Pue, Mexico

[4] Autonomous Univ Aguascalientes, Aguascalientes, Aguascalientes, Mexico

来源：

2019 IEEE 62ND INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS) | 2019年

关键词：

Class-AB; OTA; current efficiency; g(m)-boosting; dynamic biasing; SLEW RATE; STAGE;

D O I：

10.1109/mwscas.2019.8885270

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：

Efficient class-AB OTAs with enhanced gain bandwidth, open loop gain, output current, and slew rate are presented. They are based on a g(m)-boosting technique (at least factor of two) and also use dynamically biased cascode transistors to achieve high gain and output currents much larger than the bias current. Measurement results of 180 nm CMOS test chip prototypes validate the improvements.

引用

页码：778 / 781

页数：4

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