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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tao Yin Huanming Wu Haigang Yang Qisong Wu Jiwei Jiao |
| Copyright Year | 2012 |
| Description | Author affiliation: Shanghai Institute of Microsystem and Information Technology, CAS, Shanghai, 200050, China (Jiwei Jiao) || Institute of Electronics, Chinese Academy of Sciences, Beijing, 100190, China (Tao Yin; Huanming Wu; Haigang Yang; Qisong Wu) |
| Abstract | An ASIC is implemented for readout and drive of a bulk micromachined gyroscope utilizing electromagnetic actuation and sensing. A fully differential structure is used in the readout channel and drive loop to reduce the common-mode noise and interference. A low-noise front-end amplifier is designed to sense the rotation induced voltage signal. A switched-capacitor BPF with adjustable center frequency is proposed to track the resonance frequency and suppress the noise and harmonic components out of the signal bands. An AGC-based driving loop with PLL for demodulation clock generation is also designed and integrated on chip. The interface circuits are designed in a 0.35μm 2P4M CMOS process. The simulation results show that the readout circuit achieves an input referred noise voltage of 16.5nV/√Hz and dynamic range of 80dB over the 100Hz bandwidth from a single 5V supply. |
| Starting Page | 1 |
| Ending Page | 3 |
| File Size | 444341 |
| Page Count | 3 |
| File Format | |
| ISBN | 9781467324748 |
| e-ISBN | 9781467324755 |
| DOI | 10.1109/ICSICT.2012.6467874 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-10-29 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Gyroscopes Noise Band pass filters Sensors Resonant frequency Low pass filters Micromechanical devices |
| Content Type | Text |
| Resource Type | Article |
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