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A Time-Domain SAR Smart Temperature Sensor With Curvature Compensation and a 3 σ
本文提出了一种基于逐次逼近算法的时间域温度传感器，采用曲率补偿技术实现高精度测温。
0.4°C/430.6°C精度(3σ), 0.1°C分辨率, 11.1μA@2 samples/s
时间域温度传感器逐次逼近曲率补偿延迟线CMOS
▸采用温度依赖延迟线(TDDL)生成与温度成正比的延迟
▸使用二进制加权可调参考延迟线(ARDL)配合SAR逻辑实现延迟逼近
▸创新的曲率补偿技术提升线性度
Abstract
C Range
Poki Chen, Member , IEEE, Chun-Chi Chen , Member , IEEE, Y u-Han Peng, Kai-Ming Wang, and Y u-Shin Wang
Abstract—This paper describes a time-domain temperature
sensor based on a successive approximation algorithm. Without
using any bipolar transistor , a temperature sensor composed
of a temperature-dependent delay line (TDDL) is utilized to
generate a delay proportional to the measured temperature.
A binary-weighted adjustable reference delay line (ARDL) is
adopted with an effective de