SHT85 datasheet(3/23 Pages) SENSIRION

3 / 23 page

www.sensirion.com

Version 3 – August 2020

3/23

1 Humidity and Temperature Sensor Specifications

Relative Humidity

Parameter

Conditions

Value

Units

Accuracy tolerance2

Typ.

1.5

%RH

Max.

see Figure 1 -

Repeatability3

Low, typ.

0.21

%RH

Medium, typ.

0.15

%RH

High, typ.

0.08

%RH

Resolution

Typ.

0.01

%RH

Hysteresis

At 25°C

0.8

%RH

Specified range4

Non-condensing environment5

0 to 100

%RH

Response time6

 63%

Long-term drift8

Typ.

<0.25

%RH/y

Table 1: Humidity sensor specifications

Temperature

Parameter

Conditions

Value

Units

Accuracy tolerance1

Typ., 20°C to 50 °C

0.1

°C

Max.

see Figure 2 -

Repeatability3

Low, typ.

0.15

°C

Medium, typ.

0.08

°C

High, typ.

0.04

°C

Resolution

Typ.

0.01

°C

Operating range

–40 to 1059

°C

Response time10

 63%

Long-term drift

Max.

<0.03

°C/y

Table 2: Temperature sensor specifications

2 For definition of typ. and max. accuracy tolerance, please refer to the document “Sensirion Humidity Sensor Specification Statement”.

3 The stated repeatability is 3 times the standard deviation (3σ) of multiple consecutive measurement values at constant conditions and is a measure for the noise

on the physical sensor output.

4 Specified range refers to the range for which the humidity sensor specification is guaranteed.

5 Condensation shall be avoided because of risk of corrosion and leak currents on the PCB. For details about recommended humidity and temperature operating

range, please refer to Section 1.2.

6 Time for achieving 63% of a humidity step function, valid at 25°C and 1 m/s airflow. Humidity response time in the application depends on the design-in of the

sensor.

7 With activated ART function (see Section 4.8) the response time can be improved by a factor of 2.

8 Typical value for operation in normal RH/T operating range. Max. value is < 0.5 %RH/y. Value may be higher in environments with vaporized solvents, out-gassing

tapes, adhesives, packaging materials, etc. For more details please refer to Handling Instructions.

9 All parts, incl. PCB are rated up to 125°C, except for the connector, which is rated for 105°C.

10 Temperature response time depends on heat conductivity of sensor substrate and design-in of sensor in application.

SHT85 Datasheet(PDF) 3 Page - Sensirion AG Switzerland

SHT85 Datasheet(HTML) 3 Page - Sensirion AG Switzerland

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Datasheet Download

Link URL