AS-MLV-P2 Factsheet

AS-MLV-P2
www.ams.com/Gas-Sensors
AS-MLV-P2 – Unique micromachined, low-power
sensor design
-High sensitivity to volatile organic compounds (VOCs)
-Very low power consumption
-Long-term stability
-Long lifetime
We provide innovative
analog solutions to
the most challenging
applications in sensor
and sensor interfaces,
power management,
and wireless.
General Description
Whether for air quality, safety or control, sensor applications have one common requirement: a reliable sensor component. ams’ ability to micro-machine sensor chips using
standard silicon wafer technology allows us to produce consistently reliable sensors in
high volumes for mass market applications.
ams’ AS-MLV-P2 high-performance sensor component is highly sensitive to volatile
organic compounds for superior monitoring of indoor air quality. Produced using a
combination of thin-film, thick-film and other patent-pending proprietary technologies
developed by ams, the AS-MLV-P2 component is available in a package with ultimate
design efficiency. AS-MLV-P2 sensor component chips are fabricated using silicon
technology. The platinum heater and inter-digital electrode structures are placed on an
approximately one micrometer-thin LPCVD silicon nitride membrane to achieve the lowest possible power consumption. A highly reproducible tin dioxide-based sensitive layer is deposited over the inter-digital electrodes, forming a gas concentrationdependent
conductivity. AS-MLV-P2 is reflow capable and can be connected via edge connectors.
Applications
Benefits
-Monitoring indoor air quality in smart home,
IoT and other consumer applications
- High sensitivity to volatile organic compounds (VOCs)
- Very low power consumption
- Long-term stability
- Long lifetime
- Reflow capable
- Edge connectors
Dimensions
TO-39 header
Ø: 9 mm, height: 2.9 mm
PCB
9.1 mm x 9.1 mm x 1.6 mm
Dimensions
Operational Conditions
4.53 ±0.20
4.53 ±0.20
9.1 ±0.30
2.650
0° to 50°C
Storage temperature
-25º to 50ºC
Ambient humidity
5 to 95% RH, non-condensing
Electrical Characteristics
Power consumption
34 mW at 320°C
Typical sensor resistance in
unpolluted air
100k-500k Ω range
Signal output component
Resistance
2
3
1
4
Ø7
Ambient temperature range
9.1 ±0.30
2.650
9.10 ±0.30
Environmental Conditions
2
3
1
4
9.10 ±0.30
320°C
Ø7
Typical operation temperature
1.55 ±0.10
1.55 ±0.10
1 - Sensor electrode 1
2 - Heater 1
3 - Sensor electrode 2
4 - Heater 2
Heater
100 Ω ±20%
Sensing Properties
VOCs detected
Alcohols, aldehydes, ketones, organic acids,
amines, aliphatic and aromatic hydrocarbons
Typical response / recovery time
Seconds
Expected lifetime
Years
Cross sensitivity
Cross-sensitivity to humidity and hydrogen
Packaging
Typical Sensor Response, Basic Measuring Circuit
50% r.h.
100k
Contact of the sensitive layer with liquids shall be avoided.
25 ppm
VS
50 ppm
Standard TO-39 header with protection membrane.
Restrictions
RS
1M
Resistance
Typical heater resistance at RT
acetaldehyde
VH
RL
VOUT
100 ppm
10k
200
400
Time (a.u.)
Do not operate gas sensors in the vicinity of silicone and polysiloxanes.
www.ams.com
[email protected]
© 05/2015 by ams
Subject to change without notice
Headquarters
ams AG
Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria
Phone +43 3136 500-0
Sales Offices Worldwide
[email protected]
[email protected]
[email protected]
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