A high-performance 1.2 V–99 μW rail-to-rail CMOS class AB amplifier

Maria D R Valero; Nicolas  Medrano; Belén   Calvo; Santiago F Celma

doi:10.1016/j.mejo.2014.10.011

A high-performance 1.2 V–99 μW rail-to-rail CMOS class AB amplifier

Maria D R Valero
, Nicolas Medrano
, Belén Calvo
, Santiago F Celma

Research output: Contribution to journal › Article (Academic Journal) › peer-review

8 Citations (Scopus)

Abstract

This paper presents a compact, reliable 1.2 V low-power rail-to-rail class AB operational amplifier (OpAmp) suitable for integrated battery powered systems which require rail-to-rail input/output swing and high slew-rate while maintaining low power consumption. The OpAmp, fabricated in a standard 0.18 μm CMOS technology, exhibits 86 dB open loop gain and 97 dB CMRR. Experimental measurements prove its correct functionality operating with 1.2 V single supply, performing very competitive characteristics compared with other similar amplifiers reported in the literature. It has rail-to-rail input/output operation, 5 MHz unity gain frequency and a 3.15 V/μs slew-rate for a capacitive load of 100 pF, with a power consumption of 99 μW.

Original language	English
Pages (from-to)	96-102
Number of pages	7
Journal	Microelectronics
Volume	46
Issue number	1
Early online date	26 Nov 2014
DOIs	https://doi.org/10.1016/j.mejo.2014.10.011
Publication status	Published - 1 Jan 2015

Keywords

CMOS analog integrated circuits
Low-power design
Operational amplifiers

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Dr Maria D R Valero
- maria.valerobristol.acuk
- School of Electrical, Electronic and Mechanical Engineering - Senior Lecturer
- Cabot Institute for the Environment
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Cite this

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title = "A high-performance 1.2 V–99 μW rail-to-rail CMOS class AB amplifier",

abstract = "This paper presents a compact, reliable 1.2 V low-power rail-to-rail class AB operational amplifier (OpAmp) suitable for integrated battery powered systems which require rail-to-rail input/output swing and high slew-rate while maintaining low power consumption. The OpAmp, fabricated in a standard 0.18 μm CMOS technology, exhibits 86 dB open loop gain and 97 dB CMRR. Experimental measurements prove its correct functionality operating with 1.2 V single supply, performing very competitive characteristics compared with other similar amplifiers reported in the literature. It has rail-to-rail input/output operation, 5 MHz unity gain frequency and a 3.15 V/μs slew-rate for a capacitive load of 100 pF, with a power consumption of 99 μW.",

keywords = "CMOS analog integrated circuits, Low-power design, Operational amplifiers",

author = "Valero, \{Maria D R\} and Nicolas Medrano and Bel{\'e}n Calvo and Celma, \{Santiago F\}",

year = "2015",

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doi = "10.1016/j.mejo.2014.10.011",

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journal = "Microelectronics",

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T1 - A high-performance 1.2 V–99 μW rail-to-rail CMOS class AB amplifier

AU - Valero, Maria D R

AU - Medrano, Nicolas

AU - Calvo, Belén

AU - Celma, Santiago F

PY - 2015/1/1

Y1 - 2015/1/1

N2 - This paper presents a compact, reliable 1.2 V low-power rail-to-rail class AB operational amplifier (OpAmp) suitable for integrated battery powered systems which require rail-to-rail input/output swing and high slew-rate while maintaining low power consumption. The OpAmp, fabricated in a standard 0.18 μm CMOS technology, exhibits 86 dB open loop gain and 97 dB CMRR. Experimental measurements prove its correct functionality operating with 1.2 V single supply, performing very competitive characteristics compared with other similar amplifiers reported in the literature. It has rail-to-rail input/output operation, 5 MHz unity gain frequency and a 3.15 V/μs slew-rate for a capacitive load of 100 pF, with a power consumption of 99 μW.

AB - This paper presents a compact, reliable 1.2 V low-power rail-to-rail class AB operational amplifier (OpAmp) suitable for integrated battery powered systems which require rail-to-rail input/output swing and high slew-rate while maintaining low power consumption. The OpAmp, fabricated in a standard 0.18 μm CMOS technology, exhibits 86 dB open loop gain and 97 dB CMRR. Experimental measurements prove its correct functionality operating with 1.2 V single supply, performing very competitive characteristics compared with other similar amplifiers reported in the literature. It has rail-to-rail input/output operation, 5 MHz unity gain frequency and a 3.15 V/μs slew-rate for a capacitive load of 100 pF, with a power consumption of 99 μW.

KW - CMOS analog integrated circuits

KW - Low-power design

KW - Operational amplifiers

U2 - 10.1016/j.mejo.2014.10.011

DO - 10.1016/j.mejo.2014.10.011

M3 - Article (Academic Journal)

SN - 0026-2692

VL - 46

SP - 96

EP - 102

JO - Microelectronics

JF - Microelectronics

IS - 1

ER -

A high-performance 1.2 V–99 μW rail-to-rail CMOS class AB amplifier

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