Datasheet SHT3x-DIS

www.sensirion.com

October 2015 - Version 1

4/18

1.1

Recommended Operating Condition

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

°C – 60 °C and 20 %RH – 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 kept 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 to operation of the SHT3x-DIS.

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

2.1

2.3

2.4

V

Slew rate change of the

supply voltage

-

-

20

V/ms

Voltage changes on the

slower than the

maximum slew rate;

faster slew rates may

lead to reset;

Supply current

idle state

(single shot mode)

-

0.2

2.0

A

Current when sensor is

not performing a

measurement during

single shot mode

idle state

(periodic data

acquisition mode)

-

45

70

A

Current when sensor is

not performing a

measurement during

periodic data acquisition

mode

Measuring

-

800

1500

A

Current consumption

while sensor is

measuring

Average

-

2

5

A

Current consumption

(operation with one

measurement per

second at lowest

repeatability, single shot

mode)

Alert Output driving

strength

IOH

mA See also section 3.5

Heater power

Heater running

5

-

25

mW

Depending on the supply

voltage

Table 3 Electrical specifications, valid at 25°C.