VOC Sensor SGP30 / SGPC3

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VOC Sensor SGP30 / SGPC3

For HVAC and Indoor Air Quality Applications

The SGPxx is a digital multi-pixel gas sensor platform designed for easy integration into air purifier, demand-controlled ventilation, and IoT applications.

The SGP30 has been designed for smart home, appliance and Internet of Things applications. It features two calibrated air quality signals and on-chip humidity compensation. In addition, with the SGPC3, Sensirion offers a low power solution that makes reliable gas sensing available for mobile applications.

Sensirion’s CMOSens® Technology offers a complete sensor system on a single chip featuring a digital I²C interface, a temperature controlled micro hotplate, and two preprocessed indoor air quality signals. As the first metal-oxide gas sensor featuring multiple sensing elements on one chip, the SGP3x provides more detailed information about the air quality. The sensing element features an unmatched robustness against contaminating gases present in real-world applications enabling a unique long-term stability and low drift. The very small 2.45 x 2.45 x 0.9 mm3 DFN package enables applications in limited spaces. Sensirion’s state-of-the-art production process guarantees high reproducibility and reliability. Tape and reel packaging, together with suitability for standard SMD assembly processes make the SGP30 predestined for high-volume applications.

Sensirion Environmental Sensing Gas Preview

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Overview of Sensirion’s Gas Sensors

Product	SGP30	SGPC3	SVM30
Output	Total VOC in ppb H₂-based CO₂eq in ppm	Total VOC in ppb	Total VOC in ppb H₂-based CO₂eq in ppm Relative humidity Temperature
Supply voltage	1.62-1.98 V	1.62-1.98 V	4.5-5.5 V
Average current	48 mA	Low power mode: 1 mA Ultra-low power mode: 0.065 mA	49 mA
Package	6-pin DFN 2.45 x 2.45 x 0.9 mm³	6-pin DFN 2.45 x 2.45 x 0.9 mm³	PCB 39 x 15 x 6.5 mm³
Interface	I²C 1.8 V	I²C 1.8 V	I²C 5 V
Indoor Air Quality
Typ accuracy	15% of measured value	15% of measured value	15% of measured value
Output range¹	TVOC: 0 – 60’000 ppb CO₂eq: 0 – 60’000 ppm	TVOC: 0 – 60’000 ppb	TVOC: 0 – 60’000 ppb CO₂eq: 0 – 60’000 ppm
Sampling rate	1s	Low power mode: 2s Ultra-low power mode: 30s	1s
Long-term stability	MOXSens® siloxane resistance: typ 1.3% accuracy drift per year in siloxane accelerated lifetime test
Baseline compensation	On-chip baseline compensation algorithm
Humidity compensation	Yes²	Yes²	Yes²
Temperature
Measurement range	–	–	–20 °C – 85 °C
Typ accuracy	–	–	± 1°C
Humidity
Measurement range	–	–	0% – 100% RH
Typ accuracy	–	–	± 5% RH
Please note that the above values are of indicatory nature only. For detailed information please consult the respective datasheet. ¹ CO₂eq output is based on a hydrogen measurement. The SGP is not suited for applications where real CO₂ detection is required. ² To use the humidity compensation feature of the SGP an additional humidity sensor like the SHTxx is required.