A ZOOM ADC for Protable Gyroscope
This design is a high precision ZOOM analogtodigital 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 ra...
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| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Harbin University of Science and Technology Publications
2020-06-01
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| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1769 |
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| Summary: | This design is a high precision ZOOM analogtodigital 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 035um BCD process, and simulated The simulation results show that the ZOOM ADC has a dynamic range of 120dB for the center frequency of 10KHz and a bandwidth of 100Hz, which satisfies the performance requirements of the ADC in the MEMS gyroscope interface circuit |
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| ISSN: | 1007-2683 |