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]