A 4.7nW 13.8ppm/°C Self-Biased Wakeup Timer Using a Switched-Resistor Scheme

📋 论文概要

该论文提出了一种采用开关电阻方案的自偏置唤醒定时器，实现了4.7nW的超低功耗和13.8ppm/°C的温度稳定性，解决了电池受限传感器节点中唤醒定时器功耗高、精度差的问题。

💡 主要创新点

• 提出自偏置架构，无需外部偏置电路，降低功耗和面积
• 采用开关电阻方案实现温度补偿，在低功耗下获得高精度定时
• 整体设计在4.7nW功耗下达到13.8ppm/°C的温度系数，优于传统方案

🏷 关键词

📄 原文摘要

under restricted battery capacity due to their size [1]. Due to low duty cycles in many sensing applications, sleep-mode power can dominate the total energy budget. Wakeup timers are a key always-on component in such sleep modes and must therefore be designed with aggressive power consumption targets (e.g., <10nW). Also, accurate timing generation is critical for peer-to-peer communication between sensor platforms [1]. Although a 32kHz crystal oscillator can provide low power

👥 作者与机构

Taekwang Jang, Myungjoon Choi, Seokhyeon Jeong,

Suyoung Bang, Dennis Sylvester, David Blaauw University of Michigan, Ann Arbor, MI Miniaturized computing platforms typically operate