High resolution analog interface for micromachined capacitive accelerometer

L. Aaltonen, P. Rahikkala, M. Saukoski, K. Halonen
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引用次数: 1

Abstract

A continuous time analog accelerometer interface is feasible when high dynamic range together with wide signal band is required. This paper provides design data for a 120 dB accelerometer with signal band of 300 Hz. Circuit structures for an integrated interface will be presented and important sources of instabilities discussed. Measured and simulated results will be provided to support the theory.
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用于微机械电容式加速度计的高分辨率模拟接口
在需要高动态范围和宽信号频带的情况下,连续时间模拟加速度计接口是可行的。本文给出了信号频带为300 Hz的120 dB加速度计的设计数据。将介绍集成接口的电路结构,并讨论不稳定的重要来源。将提供测量和模拟结果来支持该理论。
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