Capacitively-Coupled Chopper Operational Amplifiers

Book Chapter (2016)
Author(s)

Q. Fan (Mellanox Technologies)

Kofi A.A. Makinwa (TU Delft - Microelectronics)

JH Huijsing (External organisation)

Department
Microelectronics
DOI related publication
https://doi.org/10.1007/978-3-319-47391-8_5
More Info
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Publication Year
2016
Language
English
Department
Microelectronics
Bibliographical Note
Chapter 5@en
Pages (from-to)
47-69
ISBN (print)
978-3-319-47390-1
ISBN (electronic)
978-3-319-47391-8

Abstract

In Chap. 3, the basic capacitively-coupled chopper topology for operational amplifiers (opamp) has been described. In this chapter, two capacitively-coupled chopper opamps (CCOPA) will be presented. They both achieve wide input common-mode voltage range (CMVR) and high precision. The first opamp employs a single-path architecture and features high power efficiency and simplicity. The second opamp is more complex and employs a multipath architecture. Thus, it is less power efficient, but has a wider bandwidth and a smoother transfer function.

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