Advances in Low-Offset Opamps

Q. Fan; JH Huising; KAA Makinwa

doi:10.1007/978-3-319-21185-5_11

Advances in Low-Offset Opamps

Q. Fan, JH Huising, KAA Makinwa

Electronic Instrumentation

Research output: Chapter in Book/Conference proceedings/Edited volume › Chapter › Scientific

Abstract

This paper focuses on the design of amplifiers that achieve micro-volt offset by employing dynamic offset reduction techniques, which include chopping, auto-zeroing and chopper stabilization. The working principles and non-idealities of these techniques will be described. The up-modulated offset associated with chopping causes ripple, which can be a significant source of error if not filtered effectively. Thus, various ripple reduction techniques are introduced to suppress this ripple to the micro-volt level. Also discussed is the ping-pong architecture, which enables the realization of auto-zeroed amplifiers with continuous-time behavior. Examples of chopped amplifiers, auto-zeroed amplifiers and chopper stabilized amplifiers are presented, as well as designs in which multiple techniques are combined.

Original language	English
Title of host publication	Efficient Sensor Interfaces, Advanced Amplifiers and Low Power RF Systems
Subtitle of host publication	Advances in Analog Circuit Design 2015
Editors	KAA Makinwa, A Baschirotto, P Harpe
Publisher	Springer
Pages	187-199
Number of pages	13
Volume	2
ISBN (Electronic)	978-3-319-21185-5
ISBN (Print)	978-3-319-21184-8
DOIs	https://doi.org/10.1007/978-3-319-21185-5_11
Publication status	Published - 2016
Event	AACD 2015, Neuchatel, Switzerland - Dordrecht Duration: 21 Apr 2015 → 23 Apr 2015

Publication series

Name
Publisher	Springer

Conference

Conference	AACD 2015, Neuchatel, Switzerland
Period	21/04/15 → 23/04/15

Keywords

Circuits and Systems
Electronics and Microelectronics, Instrumentation

Access to Document

10.1007/978-3-319-21185-5_11

Cite this

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title = "Advances in Low-Offset Opamps",

abstract = "This paper focuses on the design of amplifiers that achieve micro-volt offset by employing dynamic offset reduction techniques, which include chopping, auto-zeroing and chopper stabilization. The working principles and non-idealities of these techniques will be described. The up-modulated offset associated with chopping causes ripple, which can be a significant source of error if not filtered effectively. Thus, various ripple reduction techniques are introduced to suppress this ripple to the micro-volt level. Also discussed is the ping-pong architecture, which enables the realization of auto-zeroed amplifiers with continuous-time behavior. Examples of chopped amplifiers, auto-zeroed amplifiers and chopper stabilized amplifiers are presented, as well as designs in which multiple techniques are combined.",

keywords = "Circuits and Systems , Electronics and Microelectronics, Instrumentation",

author = "Q. Fan and JH Huising and KAA Makinwa",

year = "2016",

doi = "10.1007/978-3-319-21185-5_11",

language = "English",

isbn = "978-3-319-21184-8",

volume = "2",

publisher = "Springer",

pages = "187--199",

editor = "KAA Makinwa and A Baschirotto and P Harpe",

booktitle = "Efficient Sensor Interfaces, Advanced Amplifiers and Low Power RF Systems",

note = "AACD 2015, Neuchatel, Switzerland ; Conference date: 21-04-2015 Through 23-04-2015",

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TY - CHAP

T1 - Advances in Low-Offset Opamps

AU - Fan, Q.

AU - Huising, JH

AU - Makinwa, KAA

PY - 2016

Y1 - 2016

N2 - This paper focuses on the design of amplifiers that achieve micro-volt offset by employing dynamic offset reduction techniques, which include chopping, auto-zeroing and chopper stabilization. The working principles and non-idealities of these techniques will be described. The up-modulated offset associated with chopping causes ripple, which can be a significant source of error if not filtered effectively. Thus, various ripple reduction techniques are introduced to suppress this ripple to the micro-volt level. Also discussed is the ping-pong architecture, which enables the realization of auto-zeroed amplifiers with continuous-time behavior. Examples of chopped amplifiers, auto-zeroed amplifiers and chopper stabilized amplifiers are presented, as well as designs in which multiple techniques are combined.

AB - This paper focuses on the design of amplifiers that achieve micro-volt offset by employing dynamic offset reduction techniques, which include chopping, auto-zeroing and chopper stabilization. The working principles and non-idealities of these techniques will be described. The up-modulated offset associated with chopping causes ripple, which can be a significant source of error if not filtered effectively. Thus, various ripple reduction techniques are introduced to suppress this ripple to the micro-volt level. Also discussed is the ping-pong architecture, which enables the realization of auto-zeroed amplifiers with continuous-time behavior. Examples of chopped amplifiers, auto-zeroed amplifiers and chopper stabilized amplifiers are presented, as well as designs in which multiple techniques are combined.

KW - Circuits and Systems

KW - Electronics and Microelectronics, Instrumentation

U2 - 10.1007/978-3-319-21185-5_11

DO - 10.1007/978-3-319-21185-5_11

M3 - Chapter

SN - 978-3-319-21184-8

VL - 2

SP - 187

EP - 199

BT - Efficient Sensor Interfaces, Advanced Amplifiers and Low Power RF Systems

A2 - Makinwa, KAA

A2 - Baschirotto, A

A2 - Harpe, P

PB - Springer

T2 - AACD 2015, Neuchatel, Switzerland

Y2 - 21 April 2015 through 23 April 2015

ER -

Advances in Low-Offset Opamps

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