Proceedings of the 2025 International Conference on Electronics, Electrical and Grid Technology (ICEEGT 2025)

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Research and Design of Low-Power Operational Amplifiers for Modern Applications

Authors
Jingxi Dai1, *
1Jinan Innovation Zone Haichuan Secondary School, Jinan, 250103, China
*Corresponding author. Email: chungse@ldy.edu.rs
Corresponding Author
Jingxi Dai
Available Online 18 February 2026.
DOI
10.2991/978-94-6463-986-5_26How to use a DOI?
Keywords
Low-power operational amplifier; Power consumption; lnternet of Things (IoT)
Abstract

Operational amplifiers are at the heart of most analog circuits, but their energy requirements have become a pressing concern, particularly in battery-powered systems and small sensors. To meet these demands, engineers have increasingly focused on low-power operational amplifiers that can deliver acceptable performance while using minimal energy. In this paper, we discuss key parameters such as gain, bandwidth, power, Slew Rate, and noise, and explain how design trade-offs are made to balance them under strict energy budgets. Several circuit styles, including two-stage, folded cascode, and subthreshold approaches, are introduced to illustrate practical strategies. Examples are drawn from medical wearables, wireless sensing platforms, and IoT devices, which all depend on extended lifetime and reliability. Finally, the paper considers future design directions such as supply-voltage scaling, emerging device technologies, and integration with intelligent systems. These insights highlight why low-power operational amplifiers are likely to remain a central building block in sustainable electronics.

Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2025 International Conference on Electronics, Electrical and Grid Technology (ICEEGT 2025)
Series
Advances in Engineering Research
Publication Date
18 February 2026
ISBN
978-94-6463-986-5
ISSN
2352-5401
DOI
10.2991/978-94-6463-986-5_26How to use a DOI?
Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Jingxi Dai
PY  - 2026
DA  - 2026/02/18
TI  - Research and Design of Low-Power Operational Amplifiers for Modern Applications
BT  - Proceedings of the 2025 International Conference on Electronics, Electrical and Grid Technology (ICEEGT 2025)
PB  - Atlantis Press
SP  - 238
EP  - 243
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-986-5_26
DO  - 10.2991/978-94-6463-986-5_26
ID  - Dai2026
ER  -