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ISSCC 2024Session 3 · ANALOG TECHNIQUESAnalog Circuits

An Amplifier-Less CMOS Potentiostat IC Consuming 3.7nW Power all over 129.5dB Dynamic Range for Electrochemical Biosensing

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📋 论文概要

该论文提出了一种无放大器的CMOS恒电位仪集成电路,通过创新架构实现3.7nW超低功耗和129.5dB宽动态范围,解决了电化学生物传感中功率受限且需测量pA至μA电流范围的关键挑战。

💡 主要创新点

核心指标
3.7nW功耗, 129.5dB动态范围
重要性
发表年份
ISSCC 2024

🏷 关键词

电化学生物传感恒电位仪超低功耗

📄 原文摘要

The Catholic University of Korea, Bucheon, Korea 3 New York University, New York, NY 1 2 Ultra-low-power potentiostats, which perform high-precision current measurements for electrochemical biosensing, hold paramount importance in the development of healthmonitoring wearables, point-of-care (PoC), and implantable diagnostics. In this application, the power budget is gravely limited (sub-μW), and the input current signal varies from pA to μA range, which corresponds to a dynamic range (DR) of >120dB [1,2]. These requirements become more stringent in some applications, such as singlemolecule biosensors, where the desired signal currents exist within the nA range amidst the backdrop of background currents in the nA-to-μA range [1], and millimeter-sized electrochemical sensors, where the power efficiency is crucial. Many prior potentiostat ICs [2-6] are unable to achieve such a wide DR with a sub-μW

👥 作者与机构

Muhammad Abrar Akram1, Aida Aberra1, Soon-Jae Kweon2, Sohmyung Ha1,3

New York University Abu Dhabi, Abu Dhabi, United Arab Emirates

分类:Analog Circuits · 年份:ISSCC 2024