Proceedings of the IEEE 2001 Custom Integrated Circuits Conference (Cat. No.01CH37169)
DOI: 10.1109/cicc.2001.929735
|View full text |Cite
|
Sign up to set email alerts
|

Interface circuit for metal-oxide gas sensor

Abstract: This paper describes a sensor interface for metal-oxide chemical gas sensor for pollution detection. The function of the ASIC is to control the sensor working temperature by applying a programmable voltage with 10 bits resolution, to measure the resistance of the sensitive elements ranging from 5KQ to 100MS1, measure the ambient temperature with an external NTC thermistor and offer a fully digital user interface. It gives the possibility to make low power and low cost high performance gas sensing micrsosystems… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
10
0

Publication Types

Select...
7
1

Relationship

0
8

Authors

Journals

citations
Cited by 21 publications
(10 citation statements)
references
References 1 publication
0
10
0
Order By: Relevance
“…An example of a hybrid sensor system comprising a tin-oxidecoated microhotplate, an alcohol sensor, a humidity sensor and an associated ASIC chip (Application-specific Integrated Circuit) has been presented (Cardinali et al, 1997). More recent developments include an interface-circuitry chip for metal-oxide gas sensors and an architecture of an on-chip driving circuitry for a gas sensor array (Ruedi et al, 2001;Mo et al, 2002).…”
Section: Gas Sensor Microsystems and Cmos-based Gas Sensor Microsystemsmentioning
confidence: 99%
“…An example of a hybrid sensor system comprising a tin-oxidecoated microhotplate, an alcohol sensor, a humidity sensor and an associated ASIC chip (Application-specific Integrated Circuit) has been presented (Cardinali et al, 1997). More recent developments include an interface-circuitry chip for metal-oxide gas sensors and an architecture of an on-chip driving circuitry for a gas sensor array (Ruedi et al, 2001;Mo et al, 2002).…”
Section: Gas Sensor Microsystems and Cmos-based Gas Sensor Microsystemsmentioning
confidence: 99%
“…The range achieved with their system runs from a few to 100 , which again is too low. A more versatile system for measuring resistors between 5 and 100 is proposed by Ruedi et al [16]. The measuring method is based on biasing the sensor at a constant voltage.…”
Section: Smart Sensor Electronicsmentioning
confidence: 99%
“…CMOS (Complementary Metal Oxide Semiconductor) technology is, at the moment, the dominant technology for application-specific circuitry, and several CMOS technologybased microhotplates have been developed over the last years [5][6][7][8]. However, more sophisticated metal-oxide based sensor systems, that include, e.g., temperature controllers or readout circuitry were mostly realized as hybrid systems with the microhotplates and the circuitry placed on two different chips [9,10].…”
Section: Introductionmentioning
confidence: 99%