Super-Gain-Boosted AB-AB Fully Differential Miller Op-Amp With 156dB Open-Loop Gain and 174MV/V MHZ pF/μW Figure of Merit in 130nm CMOS Technology

被引：7

作者：

Paul, Anindita ^{[1
]}

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

Diaz Sanchez, Alejandro ^{[3
]}

Lopez-Martin, Antonio J. ^{[4
]}

Gonzalez Carvajal, Ramon ^{[5
]}

Li, Frank X. ^{[1
]}

机构：

[1] Youngstown State Univ, Rayen Sch Engn, Youngstown, OH 44555 USA

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

[3] Natl Inst Astrophys Opt & Elect, Dept Elect, Puebla 72000, Mexico

[4] Univ Publ Navarra, Inst Smart Cities, Pamplona 31006, Spain

[5] Univ Seville, Dept Elect Engn, Seville 41092, Spain

来源：

IEEE ACCESS | 2021年 / 9卷

关键词：

Class-AB op-amp; fully differential amplifier; Miller-compensation; regulated cascode; resistive local common-mode feedback; voltage follower; COMPENSATION; AMPLIFIER;

D O I：

10.1109/ACCESS.2021.3072595

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A fully differential Miller op-amp with a composite input stage using resistive local common-mode feedback and regulated cascode transistors is presented here. High gain pseudo-differential auxiliary amplifiers are used to implement the regulated cascode transistors in order to boost the output impedance of the composite input stage and the open-loop gain of the op-amp. Both input and output stages operate in class AB mode. The proposed op-amp has been simulated in a 130nm commercial CMOS process technology. It operates from a 1.2V supply and has a close to rail-to-rail differential output swing. It has 156dB DC open-loop gain and 63MHz gain-bandwidth product with a 30pF capacitive load. The op-amp has a DC open-loop gain figure of merit FOMAOLDC of 174 (MV/V) MHz pF/mu W and large-signal figure of merit FOMLS of 3(V/mu s) pF/ mu W.

引用

页码：57603 / 57617

页数：15