Datasheet SHT3x-ARP

www.sensirion.com

May 2015 - Version 0.93

4/13

1.2

Temperature Sensor Performance

Parameter

Condition

Value

Units

Accuracy tolerance1

Typ. 10 to +55

0.3

°C

Repeatability2

0.1

°C

Resolution

Typ.

14

bit

Specified Range

-

-40 to 125

°C

>2

s

Long Term Drift

max.

<0.03

°C/yr

Sensitivity

11.6

mV/°C

16

mV/°C

26.7

mV/°C

Table 2 Temperature sensor specification; values are target specs and not

confirmed by measurements yet

Figure 6 Tolerance of the temperature sensor in °C for the SHT30 and SHT31

1.3

Recommended Operating Condition

The sensor shows best performance when operated within recommended normal temperature and humidity range of 5 –

60 °C and 20 – 80 %RH, respectively. Long term exposure to conditions outside normal range, especially at high humidity,

may temporarily offset the RH signal (e.g.+3%RH after 60h at >80%RH). After returning into the normal temperature and

humidity range the sensor will slowly come back to calibration state by itself. Prolonged exposure to extreme conditions

may accelerate ageing. To ensure stable operation of the humidity sensor, the conditions described in the document

“SHTxx Assembly of SMD Packages”, section “Storage and Handling Instructions” regarding exposure to volatile organic

compounds have to be met. Please note as well that this does apply not only to transportation and manufacturing, but also

2 Specifications

2.1

Electrical Specifications

Parameter

Symbol

Condition

Min

Typ.

Max

Units Comments

Supply voltage

2.4

3.3

5.5

V

Power-up/down level

2.2

2.28

2.35

V

sensor at T1 is placed on a well conducting surface with temperature T2.

±0.0

±0.5

±1.0

±1.5

±2.0

-40

-20

0

20

40

60

80

100 120

Temperature (°C)

SHT30/SHT31

maximal tolerance

typical tolerance

DT (°C)

DT (°C)

DT (°C)

DT (°C)

DT (°C)

DT (°C)