Design of feed-forward ZA interface for MEMS based accelerometers

摘要：

High order EA interface is a practical choice for high resolution MEMS sensors. Previous researches are mainly about the determination of the coefficients of multiple feedback ΣΔ interfaces. In the work presented here, a systematic method for the design of feed forward EA interface is proposed. Simulations show that the utilizing the proposed method, feed forward method and the traditional multiple feedback structures have almost the same peak SQNRs when a compensator pole is added to the feed forward structure. However, feed forward structure has many advantages, so the proposed method is a promising alternative method for the multiple feedback structure.

关键词： Analog to Digital Conversion Feed forward Sigma-Delta interface MEMS inertial accelerometer compensation filter optimal coefficients.

作者: Wenquan Liang Changchun Yang Donghai Qiao

作者单位: Institute of Geology and Geophysics,Chinese Academy of Sciences, Beijing 100029, China

会议类型: 国际会议

会议名称: 2011 4th International Congress on Image and Signal Processing(第四届图像与信号处理国际学术会议 CISP 2011)

会议地点: 上海

会议语种:英文

页码: 2181-2186

在线出版日期: 2011-10-15（万方平台首次上网日期，不代表论文的发表时间）