Air-Quality Sensor Shrinks in Size

July 28, 2022
Renesas Electronics' David Simpson highlights the company's latest line of sensors that detect air quality.

Detecting volatile organic compounds (VOCs) and odors in the home as well as commercial and industrial settings is becoming more common as IoT devices take advantage of new sensors. They can measure the total volatile organic compounds (TVOC) to help address clean air and provide notifications of problems. A number of standards have been released lately that address this space. 

David Simpson highlights Renesas Electronics' latest line of air-quality sensors that are extremely small as well as demonstrating high power efficiency. The ZMOD4410 is a compact gas sensor module (see figure). The JEDEC JESD47-qualified device has a lifetime of more than 10 years. The indoor-air-quality (IAQ) application sensor is design to detect TVOCs, estimating CO2, and monitoring IAQ in different smell-based use cases.

The sense element is a silicon-based microhotplate with a robust and highly sensitive metal-oxide (MOx) chemiresistor. The module is controlled by an I2C interface. 

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