This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Programmable CMOS Integrated Pressure Sensor
Technical Paper
1999-01-1041
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
An integrated pressure sensor is presented which uses a custom digital signal processor and non-volatile memory to calibrate and temperature compensate a family of pressure sensor elements for a wide range of automotive applications. Unlike previously introduced analog solutions, this programmable signal conditioning engine operates in the digital domain utilizing a calibration algorithm that accounts for higher order effects beyond the realm of most analog signal conditioning approaches, and provides enhanced features that typically were implemented off-chip (or not at all) with traditional analog signal conditioning solutions that use laser or electronic trimming. A specially developed digital communication interface permits calibration of the individual sensor module via connector pins after the module has been fully assembled and encapsulated. Post-trim processing is eliminated, and calibration and module customization can be performed as an integral part of end-of-line testing at the completion of the manufacturing flow. The integrated circuit contains a pressure sensor element that is co-processed in a sub-micron mixed signal CMOS wafer fabrication process, and which can be scaled to a variety of automotive pressure sensing applications. Both digital and analog sensor outputs are available.
Recommended Content
Authors
Topic
Citation
Czarnocki, W., Ding, X., Schuster, J., and Roeckner, B., "Programmable CMOS Integrated Pressure Sensor," SAE Technical Paper 1999-01-1041, 1999, https://doi.org/10.4271/1999-01-1041.Also In
References
- Schuster J. P. Czarnocki W.S. “Automotive Pressure Sensors: Evolution of a Micromachined Sensor Application,” SAE International Truck and Bus Meeting and Exposition Cleveland November 1997
- Czarnocki W.S. Schuster J. P. “Robust, Modular, Integrated Pressure Sensor,” 7th International Congress on Sensors Nuremberg May 1995
- Lee R. “Delco Gen-II MAP Sensor,” Motorola internal report November 1994
- Kress H.J. et.al. “Integrated Silicon Pressure Sensor for Automotive Application with Electronic Trimming,” SAE International Congress and Exposition Detroit February 1995
- Dunbar M. “Teaching an Old Sensor Some New Tricks,” Electronic Design News 12 June 18 1997
- Rastegar A. J. Bryzek J. “A High-Performance CMOS Processor for Piezoresistive Sensors,” Sensors Magazine 82 87 October 1997
- Alba M. “The Application of Microcontrollers to Automotive Smart Sensors,” SAE International Congress and Exposition Detroit February 1989
- Mahana P.M. Trofimenkoff F.N. “Transducer Output Signal Processing Using an Eight Bit Microcomputer,” IEEE Transactions on Instrumentation and Measurement IM-35 2 June 1986
- Costlow T. “Auto Electronics Maker Pushes Integration and Packaging,” EE Times 923 October 14 1996
- Yoshii Y. et.al. “One Chip Integrated Software Calibrated CMOS Pressure Sensor with MCU,” 1997 International Conference on Sensors and Transducers Chicago June 1997