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JSSC 2009第11期Other0.25μm CMOS

A Micropower 16-Based Interface ASIC for a Capacitive 3-Axis Micro-Accelerometer

一款基于16位接口的微功耗ASIC,用于3轴电容式微加速度计
1.2–2.75 V供电, 1.73 mm²面积, 1Hz模式21.2μA, 25Hz模式97.6μA
微加速度计电容式传感器低功耗数字转换系统级芯片
采用1/6传感器前端直接数字转换
集成频率参考和时钟发生器
支持12位分辨率的1Hz和25Hz带宽模式
Abstract
Kämäräinen , Student Member , IEEE , Erkka Laulainen, Student Member , IEEE, Mikko Saukoski , Member , IEEE, Lauri Koskinen , Member , IEEE, Marko Kosunen, Member , IEEE, and Kari A. I. Halonen , Member , IEEE Abstract—In this paper, a micropower interface IC for a capacitive 3-axis micro-accelerometer is presented. The IC is implemented in a 0.25- m CMOS process. The fully-integrated sensor interface is based on a /1/6 sensor front-end that operates mechanically in an open-loop configuration an