Datasheet SGP30 (Sensirion) - 2

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1 Sensor Performance 1.1 Gas Sensing Performance
The values listed in
Table 1
are valid at 25°C, 50% RH and typical VDD.
Parameter Signal Values Comments
Measurement Ethanol signal 0 ppm2 to 1000 ppm range1 H2 signal 0 ppm to 1000 ppm Ethanol signal 0.3 ppm to 30 ppm The specifications below are defined for this measurement Specified range range. The specified measurement range covers the gas H2 signal 0.5 ppm to 3 ppm concentrations expected in indoor air quality applications. Accuracy is defined as c - cset see
Figure 2
cset Ethanol signal with c the measured concentration and c c typ.: 15% of meas. value set ref = 0.4 ppm the concentration set point. The concentration c is determined by sref - sout Accuracy3 c = cref ∙ exp ( ) 512 with see
Figure 3
sout: Ethanol/Hydrogen signal output H2 signal c typ.: 10% of meas. value ref = 0.5 ppm at concentration c sref: Ethanol/Hydrogen signal output at 0.5 ppm H2 see
Figure 4
Ethanol signal Long-term typ.: 1.3% of meas. value Change of accuracy over time: Siloxane accelerated drift3,4 lifetime test5 see
Figure 5
H2 signal typ.: 1.3% of meas. value Ethanol signal Resolution of Ethanol and Hydrogen signal outputs in Resolution 0.2 % of meas. value relative change of the measured concentration H2 signal Sampling Ethanol signal frequency Max. 40 Hz Compare with minimum measurement duration in
Table 10
H2 signal
Table 1
Gas sensing performance. Specifications are at 25°C, 50% RH and typical VDD. The sensors have been operated for at least 24h before the first characterization. 1 Exposure to ethanol and H2 concentrations up to 1000 ppm have been tested. For applications requiring the measurement of higher gas concentrations please contact Sensirion. 2 ppm: parts per million. 1 ppm = 1000 ppb (parts per billion) 3 90% of the sensors will be within the typical accuracy tolerance, >99% are within the maximum tolerance. 4 The long-term drift is stated as change of accuracy per year of operation. 5 Test conditions: operation in 250 ppm Decamethylcyclopentasiloxane (D5) for 200h simulating 10 years of operation in an indoor environment. www.sensirion.com Version 1.0 – May 2020 – D1 2/19 Document Outline 1 Sensor Performance 1.1 Gas Sensing Performance 1.2 Air Quality Signals 1.3 Recommended Operating and Storage Conditions 2 Electrical Specifications 3 Interface Specifications The SGP30 comes in a 6-pin DFN package, see Table 4. 4 Absolute Minimum and Maximum Ratings 5 Timing Specifications 5.1 Sensor System Timings 5.2 Communication Timings 6 Operation and Communication 6.1 Power-Up and Communication Start 6.2 Measurement Communication Sequence 6.3 Measurement Commands 6.4 Soft Reset 6.5 Get Serial ID 6.6 Checksum Calculation 6.7 Communication Data Sequences 7 Quality 7.1 Environmental Stability 7.2 Material Contents 8 Device Package 8.1 Moisture Sensitivity Level 8.2 Traceability 8.3 Package Outline 8.4 Landing Pattern 8.5 Soldering Instructions 9 Tape & Reel Package 10 Ordering Information Revision History Important Notices Warning, Personal Injury ESD Precautions Warranty Headquarters and Subsidiaries