TLE4963-2M datasheet(77/91 Pages) INFINEON

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Environmental sensor

PAS CO2

High performance in a small size – Introducing a disruptive

CO2 sensor based on photoacoustic spectroscopy (PAS)

Infineon’s PAS CO2 breaks the boundaries of CO2 sensing with its exceptionally

small form factor and high accuracy.

Measure what matters with our PAS CO2 sensor1)

CO2 measurement contributes to improvements in health, comfort and productivity as well as energy efficiency. Even

at moderate levels, CO2 can have a negative impact on health and productivity, causing drowsiness and headaches.

Fortunately, smart indoor air quality sensors can “smell” rising levels of CO2 and either alert the user or trigger a system

response. Awareness of indoor air quality is further increasing as a result of the COVID-19 pandemic, making accurate,

affordable monitoring solutions like XENSIV™ PAS CO2 more important than ever. Given the correlation between CO2 and

aerosol concentration, CO2 sensors can contribute to mitigating the transmission. Furthermore, CO2 sensors can facilitate

demandcontrolled ventilation, leading to improvements in energy efficiency and significant savings on energy bills.

Accurate, real-time CO2 measurement thanks to superior MEMS technology

Widespread adoption of CO2 sensors has so far been hampered by size, performance and cost constraints. Infineon’s PAS

CO2 sensor leverages photoacoustic spectroscopy (PAS) technology to provide an exceptionally small, real CO2 sensor that

is both highly accurate and cost-effective. Infineon’s leading position in MEMS technology is the foundation for this unique

and accurate CO2 detection approach. Reliable CO2 measurement enables smart monitoring of indoor air quality, facilitat-

ing improvements in health, productivity and overall well-being. These features make the PAS CO2 sensor ideal for appli-

cations in building automation as well as for integration into consumer IoT devices such as air purifiers, thermostats, baby

monitoring devices, wake-up alarms and smart speakers.

Disruptive environmental sensor technology from Infineon

PAS CO2 integrates on the PCB a photoacoustic transducer, including an acoustic detector, infrared source and optical filter;

a microcontroller for signal processing; and a MOSFET chip to drive the infrared source. The exceptional sensitivity of the

acoustic detector coupled with the integrated PCB design reduce space requirements by more than 75 percent compared to

NDIR CO2 sensors.

www.infineon.com/CO2

1) In market H2/2021

TLE4963-2M Datasheet(PDF) 77 Page - Infineon Technologies AG