JSSC 2008第12期Other0.35μm CMOS

A Mode-Matching 61Closed-Loop Vibratory Gyroscope Readout Interface With a 0004

一种利用模式匹配和盒式采样降低功耗的振动陀螺仪读出接口。

0.004°/s/√Hz噪声基底，50Hz带宽，1mW功耗

盒式采样校准力反馈模式匹配振动陀螺仪

▸模式匹配与盒式采样降低功耗

▸背景校准确保制造公差和环境变化的模式匹配

▸力反馈架构解决高Q值传感元件的带宽和增益稳定性挑战

Abstract

nwuba D. Ezekwe , Student Member , IEEE, and Bernhard E. Boser , Fellow, IEEE Abstract—This vibratory gyroscope readout interface exploits mode matching and boxcar sampling to reduce power dissipation. The interface ensures mode matching over MEMS and IC fabri- cation tolerances and ambient variations using background cali- bration, and addresses the bandwidth and gain-stability challenges raised by the high-Q sense element using a force-feedback archi- tecture that is robust against spurious me