• Digital Humidity and Temperature Sensor
Mouse over image to zoom

Digital Humidity and Temperature Sensor

ISweek online 2h ago

ISweek_com

Send Inquiry Chat Now

  • Price

    Price on request   ≥1piece

  • Model Number

    SHT25

  • Data Sheet

  • Package

    Original packaging

  • Specs

    SHT25

  • Quantity

    - +

  • Send Inquiry

Find Similar Products

Product Description

SHT25 Digital Humidity and Temperature Sensor Product Summary
The SHT25 high accuracy humidity and temperature sensor of Sensirion has become an industry standard in terms of form factor and intelligence: Embedded in a reflow solderable Dual Flat No leads (DFN) package of 3 x 3mm foot print and 1.1mm height it provides calibrated, linearized sensor signals in digital, I2C format.

The SHT2x sensors contain a capacitive type humidity sensor, a band gap temperature sensor and specialized analog and digital integrated circuit – all on a single CMOSens ® chip. This yields in an unmatched sensor performance in terms of accuracy and stability as well as minimal power consumption.

Every sensor is individually calibrated and tested. Lot identification is printed on the sensor and an electronic identification code is stored on the chip – which can be read out by command. Furthermore, the resolution of SHT2x can be changed by command (8/12bit up to 12/14bit for RH/T) and a checksum helps to improve communication reliability.

With this set of features and the proven reliability and long-term stability, the SHT2x sensors offer an outstanding performance-to-price ratio. For testing SHT2x two evaluation kits EK-H4 and EK-H5 are available.

SHT25 Digital Humidity and Temperature Sensor FEATURES
• Fully calibrated with 1.8%RH accuracy
• Digital output, I2C interface
• Low power consumption
• Excellent long term stability
• DFN type package – reflow solderable

SHT25 Digital Humidity and Temperature Sensor Performance
Relative Humidity
Parameter
 Condition
 Value
 Units
Resolution
 12 bit
 0.04
 %RH
8 bit
 0.7 %RH
Accuracy tolerance
 typ
 ±1.8
 %RH
max
 see Figure 2
 %RH
Repeatability
±0.1
 %RH
Hysteresis
±1
 %RH
Nonlinearity
<0.1
 %RH
Response time
 τ63%
 8 s
Operating Range
 extended
 0 to 100
 %RH
Long Term Drift
 Typ.
 < 0.25
 %RH/yr


Temperature
Parameter
 Condition
 Value
 Units
Resolution
 14 bit
 0.01 °C
12 bit
 0.04 °C
Accuracy tolerance
 typ
 ±0.2
 °C
max
 see Figure 3
Repeatability
±0.1
 °C
Operating Range
 extended
 -40 to 125
 °C
Response Time
 τ63%
 5 to 30
 s
Long Term Drift
 Typ.
 < 0.02
 °C/yr


Electrical Specification
Parameter
 Conditions
 min
 typ
 max
 Units
Supply Voltage, VDD
2.1 3.0 3.6 V
Supply Current, IDD
 sleep mode
 - 0.15 0.4 µA
measuring
 200 300 330 µA
Power Dissipation
 sleep mode
 - 0.5 1.2 µW
measuring
 0.6 0.9 1.0 mW
average 8bit
 - 3.2
 - µW
Heater
 VDD = 3.0 V
 5.5mW, ΔT = + 0.5-1.5°C
Communication
 digital 2-wire interface, I2C protocol


Other Series:

Series

Typ. Humidity

Accuracy %RH

Typ. Temperature

Accuracy °C

Supply Voltage Range V

Interface

Package Size

(L x W x H) mm

SHT30 ±2 ±0.2 2.4 to 5.5 I2C, analog voltage 2.5 x 2.5 x 0.9
SHT31 ±2 ±0.2 2.4 to 5.5 I2C, analog voltage 2.5 x 2.5 x 0.9
SHT35 ±1.5 ±0.1 2.4 to 5.5 I2C 2.5 x 2.5 x 0.9
SHTW1
 ±3
 ±0.4
 1.62 to 1.98
 I2C
 1.3 x 0.7 x 0.5
SHTW2 ±3 ±0.4 1.62 to 1.98 I2C 1.3 x 0.7 x 0.5
SHTC1 ±3 ±0.3 1.62 to 1.98 I2C 2 x 2 x 0.8
SHT20 ±3 ±0.3 2.1 to 3.6 I2C, PWM, SDM 3 x 3 x 1.1
SHT21 ±2 ±0.3 2.1 to 3.6 I2C, PWM, SDM 3 x 3 x 1.1
SHT25 ±1.8 ±0.2 2.1 to 3.6 I2C 3 x 3 x 1.1
SHT10* ±4.5 ±0.5 2.4 to 5.5 Digital Sbus 7.5 x 4.9 x 2.6
SHT11*

±3

±0.4 2.4 to 5.5 Digital Sbus 7.5 x 4.9 x 2.6
SHT15* ±2 ±0.3 2.4 to 5.5 Digital Sbus 7.5 x 4.9 x 2.6
SHT71 ±3 ±0.4 2.4 to 5.5 Digital Sbus 19.5 x 5.08 x 3.1
SHT75 ±1.8 ±0.3 2.4 to 5.5 Digital Sbus 19.5 x 5.08 x 3.1
*Not recommended for new design (NRND); newer products available