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Low-g accelerometer fast prototyping for automotive applications

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M. De MarinisAuthors Info & Claims

DATE '07: Proceedings of the conference on Design, automation and test in Europe

Pages 486 - 491

Published: 16 April 2007 Publication History

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Abstract

This paper presents an application of the ISIF chip (Intelligent Sensor InterFace), for conditioning a dual-axis low-g accelerometer in MEMS technology.

MEMS are nowadays the standard in automotive applications (and not only), as they feature a drastic reduction in cost, area and power, while they require a more complex electronic interface with respect to traditional discrete devices. ISIF is a Platform On Chip implementation, aiming to fast prototype a wide range of automotive sensors thanks to its high configuration resources, achieved both by full analog / digital IPs trimming options and by flexible routing structures.

This accelerometer implementation exploits a relevant part of ISIF hardware resources, but also requires signal processing add-ins (software emulation of digital DSP blocks) for the closed loop conditioning architecture and for performance improvement (for example temperature drift compensation).

In spite the short prototyping time, the resulting system achieves good performances with respect to commercial devices, featuring a 0.9 mg/√Hz noise density with 1024 LSB/g sensitivity on the digital output over a +/- 2g FS, and an offset drift over 100°C range within 30 mg, with 2% of FS sensitivity drift. Miniboards have been developed as product prototypes, consisting of a small PCB with ISIF and accelerometer dies bonded together, firmware embedded in EEPROM and communication transceivers.

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Cited By

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Melani MBertini LDe Marinis MLange PD'Ascoli FFanucci LSciuto D(2008)Hot wire anemometric MEMS sensor for water flow monitoringProceedings of the conference on Design, automation and test in Europe10.1145/1403375.1403457(342-347)Online publication date: 10-Mar-2008
https://dl.acm.org/doi/10.1145/1403375.1403457

Low-g accelerometer fast prototyping for automotive applications
1. Hardware
  1. Communication hardware, interfaces and storage

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DATE '07: Proceedings of the conference on Design, automation and test in Europe

April 2007

1741 pages

ISBN:9783981080124

General Chair:
Rudy Lauwereins
IMEC and KULeuven, Belgium
,
Program Chair:
Jan Madsen
DTU, Denmark

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EDA Consortium

San Jose, CA, United States

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Published: 16 April 2007

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DATE07: Design, Automation and Test in Europe

April 16 - 20, 2007

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Melani MBertini LDe Marinis MLange PD'Ascoli FFanucci LSciuto D(2008)Hot wire anemometric MEMS sensor for water flow monitoringProceedings of the conference on Design, automation and test in Europe10.1145/1403375.1403457(342-347)Online publication date: 10-Mar-2008
https://dl.acm.org/doi/10.1145/1403375.1403457

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A high-voltage low-power DC-DC buck regulator for automotive applications

Low noise accelerometer microsystem with highly configurable capacitive interface

Low-voltage low-power fast-settling CMOS operational transconductance amplifiers for switched-capacitor applications

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