[1]梅金硕,崔天宝. 一种应用于便携式陀螺仪的ZOOM结构ADC[J].哈尔滨理工大学学报,2020,25(03):18-24.[doi:10.15938/j.jhust.2020.03.004]
 MEI Jin shuo,CUI Tian bao. A ZOOM ADC for Protable Gyroscope[J].哈尔滨理工大学学报,2020,25(03):18-24.[doi:10.15938/j.jhust.2020.03.004]
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一种应用于便携式陀螺仪的ZOOM结构ADC
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
25
期数:
2020年03期
页码:
18-24
栏目:
数理科学
出版日期:
2020-06-25

文章信息/Info

Title:
 A ZOOM ADC for Protable Gyroscope
文章编号:
1007-2683(2020)03-0018-07
作者:
 梅金硕崔天宝
 哈尔滨理工大学 理学院,黑龙江 哈尔滨 150080)
Author(s):
 MEI JinshuoCUI Tianbao
 

(School of Sciences, Harbin University of Science and Technology, Harbin 150080,China)

关键词:
 关键词:MEMS接口电路ZOOM ADC缩放型高精度
Keywords:
 Keywords:MEMS interface circuit ZOOM ADC zoom type high precision
分类号:
TB303;TN4311
DOI:
10.15938/j.jhust.2020.03.004
文献标志码:
A
摘要:
 
摘要:设计了一种用于微机电系统(MEMS)陀螺传感器中的高精度ZOOM型模数转换器(ADC)。该结构由逐次逼近型(SAR)ADC和Sigma Delta调制器构成,通过SAR ADC的粗略转换缩小了Sigma Delta调制器的参考范围,提高了整体的转换精度。基于035um BCD工艺对该结构进行电路设计,并进行指标仿真。仿真结果表明,该ZOOM ADC对中心频率10KHz、带宽100Hz的信号转换动态范围达到120dB,满足MEMS陀螺接口电路中ADC的性能要求。
Abstract:
 
Abstract:This design is a high precision ZOOM analogtodigital converter (ADC) presented for using in microelectromechanical systems (MEMS) gyroscope sensors The structure consists of a successive approximation (SAR) ADC and a Sigma Delta modulator The coarse conversion of the SAR ADC reduces the reference range of the Sigma Delta modulator and improves the overall conversion accuracy The structure was designed with 035um BCD process, and simulated The simulation results show that the ZOOM ADC has a dynamic range of 120dB for the center frequency of 10KHz and a bandwidth of 100Hz, which satisfies the performance requirements of the ADC in the MEMS gyroscope interface circuit

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备注/Memo

备注/Memo:
 收稿日期: 2019-12-27
基金项目: 国家自然科学基金(51575149).
作者简介:
崔天宝(1994—),男,硕士研究生.
通信作者:
梅金硕(1981—),女,博士,副教授,硕士研究生导师,Email:meijinshuo@126.com.
更新日期/Last Update: 2020-10-13