Description

Infineon has leveraged its knowledge in sensors and MEMS

technologies to develop a disruptive gas sensor for CO2 sensing.

The XENSIVTM PAS CO2 is a real CO2 sensor combining NDIR

technology with Infineon’s high SNR MEMS microphones,

allowing for state-of-the-art accuracy in an exceptionally small

form factor.

The sensor is based on the photoacoustic spectroscopy (PAS)

principle, where CO2 molecules within the sensor cavity absorb

infrared light, generating small pressure changes that are

detected by an acoustic detector. CO2 concentration is then

delivered in the form of a direct ppm readout thanks to the

integrated microcontroller. Highly accurate CO2 readings are

guaranteed.

Features

• Operating range: 0 ppm to 32000 ppm

• Accuracy: ± 50 ppm ± 5% of reading between 400 ppm and 3000 ppm

• Lifetime: 10 years for indoor mission profile

• Interface: I2C, UART, and PWM

• Package dimension: 13.8 x 14 x 7.5 mm3

Potential applications

High accuracy, compact size, and SMD capability make the XENSIVTM PAS CO2 sensor ideal for

indoor air quality monitoring solutions in the market with numerous potential applications.

• HVAC (Heating, Ventilation, Air Conditioning)

• Home appliances

• Smart home IoT devices

• Agriculture/ Greenhouses

• In-cabin air quality monitoring unit