摘要
This paper presents a low-power generic readout circuit for capacitive and resistive complementary metaloxide-semiconductor (CMOS) micro-electro-mechanical-system (MEMS) sensors. This readout architecture can be scaled to even more sensors to achieve chip area and power consumption efficient. An incremental sigma-delta analog-to-digital converter (ΣΔ ADC) is used for providing multiplexed digital output. A demonstration chip was implemented in a 0.18-μm CMOS MEMS process, which integrates a three-axis accelerometer, the readout circuit, and an ARM M0 microprocessor. The chip area is 3.5×2.5 mm2 and the interface circuit with ADC draw only 120 mA of current from a 1.8-V supply. A magneto-resistance-type three-axis magnetic sensor is manufactured via extra post processes. This chip is designed to demonstrate a monolithic virtual gyroscope, which is a popular solution for low-power and low-cost inertial applications.
| 原文 | English |
|---|---|
| 主出版物標題 | 2nd IEEE International Symposium on Inertial Sensors and Systems, IEEE ISISS 2015 - Proceedings |
| 發行者 | Institute of Electrical and Electronics Engineers Inc. |
| ISBN(電子) | 9781479959143 |
| DOIs | |
| 出版狀態 | Published - 2015 5月 5 |
| 事件 | 2nd IEEE International Symposium on Inertial Sensors and Systems, IEEE ISISS 2015 - Hapuna Beach, United States 持續時間: 2015 3月 23 → 2015 3月 26 |
出版系列
| 名字 | 2nd IEEE International Symposium on Inertial Sensors and Systems, IEEE ISISS 2015 - Proceedings |
|---|
Other
| Other | 2nd IEEE International Symposium on Inertial Sensors and Systems, IEEE ISISS 2015 |
|---|---|
| 國家/地區 | United States |
| 城市 | Hapuna Beach |
| 期間 | 15-03-23 → 15-03-26 |
All Science Journal Classification (ASJC) codes
- 電氣與電子工程
- 硬體和架構
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