0.7-V Three-Stage Class-AB CMOS Operational Transconductance Amplifier

Elena Cabrera-Bernal; Salvatore Pennisi; Alfio Dario Grasso; Antonio Torralba; Ramón Gonzalez Carvajal

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0.7-V Three-Stage Class-AB CMOS Operational Transconductance Amplifier

机译：0.7V三级AB类CMOS运算跨导放大器

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摘要

A simple high-performance architecture for bulk-driven operational transconductance amplifiers (OTAs) is presented. The solution, suitable for operation under sub 1-V single supply, is made up of three gain stages and, as an additional feature, provides inherent class-AB behavior with accurate and robust standby current control. The OTA is fabricated in a 180-nm standard CMOS technology, occupies an area of 19.8⋅10−3 mm2 and is powered from 0.7 V with a standby current consumption of around 36 μA. DC gain and unity gain frequency are 57 dB and 3 MHz, respectively, under a capacitive load of 20 pF. Overall good large-signal and small-signal performances are achieved, making the solution extremely competitive in comparison to the state of the art.

机译：提出了一种用于批量驱动运算跨导放大器（OTA）的简单高性能架构。该解决方案由三个增益级组成，适合在低于1-V单电源的情况下运行，并且作为一个附加功能，具有固有的AB类行为，并具有准确而稳定的待机电流控制。 OTA采用180纳米标准CMOS技术制造，占地19.8×10-3 mm2，由0.7 V供电，待机电流约为36μA。在20 pF的电容负载下，DC增益和单位增益频率分别为57 dB和3 MHz。总体而言，大信号和小信号性能都很好，与现有技术相比，该解决方案极具竞争力。

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来源
《Circuits and Systems I: Regular Papers, IEEE Transactions on》 |2016年第11期|1807-1815|共9页
作者
Elena Cabrera-Bernal; Salvatore Pennisi; Alfio Dario Grasso; Antonio Torralba; Ramón Gonzalez Carvajal;
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作者单位

Ingenieria Electronica, University of Seville, Escuela Técnica Superior de Ingenieria, Seville, Spain;

Dipartamento de Ingegneria Elettrica Elettronica e Informatica, University of Catania, Catania, Italy;

Dipartamento de Ingegneria Elettrica Elettronica e Informatica, University of Catania, Catania, Italy;

Ingenieria Electronica, University of Seville, Escuela Técnica Superior de Ingenieria, Seville, Spain;

Ingenieria Electronica, University of Seville, Escuela Técnica Superior de Ingenieria, Seville, Spain;

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正文语种 eng
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关键词
Transistors; Resistors; Transconductance; Logic gates; Mirrors; Gain; Topology;

机译：晶体管;电阻器;跨导;逻辑门;反射镜;增益;拓扑;

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专利

1. CMOS low-voltage class-AB operational transconductance amplifier [J] . Elwan H., Gao W. Electronics Letters . 2000,第17期

机译：CMOS低压AB类运算跨导放大器
2. A Low Power Class-AB Audio Power Amplifier With Dynamic Transconductance Compensation in 55 nm CMOS Process [J] . Fang Tang, Shiping Li, Bo Wang, Circuits and Systems I: Regular Papers, IEEE Transactions on . 2016,第9期

机译：具有55nm CMOS工艺动态跨导补偿功能的低功耗AB类音频功率放大器
3. A class-AB high-speed low-power operational amplifier in BiCMOS technology [J] . Sen S., Bosco Leung IEEE Journal of Solid-State Circuits . 1996,第9期

机译：采用BiCMOS技术的AB类高速低功耗运算放大器
4. A 0.7-V CMOS operational transconductance amplifier with bulk-driven technique [C] . 2010 International SoC Design Conference . 2010

机译：具有批量驱动技术的0.7V CMOS运算跨导放大器
5. CMOS operational transconductance amplifiers with extended transconductance adjustment ranges. [D] . Adams, William John. 1991

机译：具有跨导调整范围扩展的CMOS运算跨导放大器。
6. CMOS Current Feedback Operational Amplifier-Based Relaxation Generator for Capacity to Voltage Sensor Interface [O] . Ladislav Polak, Roman Sotner, Jiri Petrzela, 2018

机译：基于CMOS电流反馈运算放大器的弛豫发生器用于电压传感器接口
7. A CMOS class-AB transconductance amplifier for switched-capacitor applications [O] . Rijns, J.J.F., Wallinga, Hans 1990

机译：用于开关电容器应用的CMOS AB类跨导放大器

0.7-V Three-Stage Class-AB CMOS Operational Transconductance Amplifier

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