A 2.98pJ/conversion 0.0023mm2 Dynamic Temperature Sensor with Fully On-Chip Corrections

📋 论文概要

本文提出了一种全片上校正的动态温度传感器，解决了传统电阻式温度传感器对工艺角和随机失配敏感、需要离片两点校准和非线性误差去除的问题。该传感器实现了2.98pJ/conversion的超低功耗和0.0023mm2的极小面积，适用于电池供电的IoT和环境监测SoC。

💡 主要创新点

• 首次实现全片上校正，无需离片两点校准或数字后处理，降低了测试成本并提高了集成度。
• 采用动态温度传感架构，结合片上校正电路，有效补偿工艺角和失配误差，同时保持极低功耗和面积。

🏷 关键词

📄 原文摘要

Nowadays, many battery-operated SoCs for IoT and environmental monitoring applications are equipped with temperature sensors. In these miniaturized systems, power and area are two critical concerns. One challenge for temperature sensors is that they are sensitive to process corners and random mismatch. Generally, a 2-point trim and systematic non-linear error removal are required, especially for resistor-based sensing front-ends with two types of resistors, whose spread is partially uncorrelated [1,2]. These corrections are done off-chip and digitally in most publications. In particular for low power sensors, they may consume more power and area than the sensor itself when integrated on-chip [3]. This work presents a resistive temperature sensor that integrates on-chip analog offset, gain and non-linearity correction techniques, while keeping state-of-the-art power and size performance. The prototype consumes

👥 作者与机构

Yuting Shen, Hanyue Li, Eugenio Cantatore, Pieter Harpe

Eindhoven University of Technology, Eindhoven, The Netherlands