Datasheet

www.sensirion.com Version 0.9 – August 2017 3/15
Long-term drift Ethanol signal
Figure 4 Typical and maximum long-term drift in % of measured
value at 25°C, 50% RH and typical VDD. The sensors have been
operated for at least 24h before the first characterization.
Long-term drift H
2
signal
Figure 5 Typical and maximum long-term drift in % of measured
value at 25°C, 50% RH and typical VDD. The sensors have been
operated for at least 60h before the first characterization.
1.2 Air Quality Signals
Parameter
Signal
Values
Comments
Output range
TVOC signal
0 ppb to 60000 ppb
Maximum possible output range. The gas
sensing performance is specified for the
measurement range as defined in Table 1
CO
2
eq signal
400 ppm to 60000 ppm
Resolution
TVOC signal
0 ppb - 2008 ppb
1 ppb
2008 ppb – 11110 ppb
6 ppb
11110 ppb – 60000 ppb
32 ppb
CO
2
eq signal
400 ppm – 1479 ppm
1 ppm
1479 ppm – 5144 ppm
3 ppm
5144 ppm – 17597 ppm
9 ppm
17597 ppm – 60000 ppm
31 ppm
Sampling rate
TVOC signal
1 Hz
The on-chip baseline compensation algorithm
has been optimized for this sampling rate. The
sensor shows best performance when used
with this sampling rate.
CO
2
eq signal
1 Hz
Table 2 Air quality signal specifications.
Figure 6 Simplified version of the functional block diagram (compare Figure 1) showing the signal
paths of the SGP30.
1.3 Recommended Operating Conditions
The sensor shows best performance when operated within recommended normal temperature and humidity range of
5 – 55 °C and 4 –20 g/m
3
, respectively. Long-term exposure (operated and not operated) to conditions outside the