P1AP.17 - Microcontroller Based Electrical Self-Test and Self-Calibration of MOX Sensor Systems

Event
17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria
Chapter
P-1 - Applications of Chemical Sensors
Author(s)
M. Stahl-Offergeld, H. Hohe, D. Krause, M. Gorny - Fraunhofer Institute for Integrated Circuits IIS, Erlangen (Germany)
Pages
468 - 469
DOI
10.5162/IMCS2018/P1AP.17
ISBN
978-3-9816876-9-9
Price
free

Abstract

CMOS integrated sensor interfaces offer high performance on a small area. In general, CMOS processes have very good matching between the devices on chip, but absolute values can vary about more than 30%. For absolute measurements, it is necessary to calibrate every single chip. The sensor interface for MOX gas sensors, which was designed inside the FP7 project MSP, thus offers several self-test and self-calibration building blocks to reduce the calibration effort. Together with the microcontroller of the sensor system, it is possible to do the complete self-test and self-calibration of the system without additional measurement equipment.

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