SHTW2 Datasheet, PDF (1/14 Pages) List of Unclassifed Manufacturers – Ultra-small flip chip package: 1.3 × 0.7 × 0.5 mm3

Data Sheet SHTW2
WLCSP Humidity and Temperature Sensor IC
 Ultra-small flip chip package: 1.3 × 0.7 × 0.5 mm³
 Fully calibrated and reflow solderable
 Ultra-low power consumption
 Power-up and measurement within 1 ms
 1.8 V supply voltage
 Typical accuracy: ±3 %RH and ±0.4 °C
Product Summary
The SHTW2 is a digital humidity and temperature sensor
in a flip chip package. This type of package opens up a
new category of ultra-small humidity sensors which are
suitable for applications with the tightest space
constraints. At the same time, the flip chip package
impresses with its pure simplicity.
The sensor is based on Sensirion’s CMOSens^®
technology, which offers a complete sensor system on a
single chip, consisting of a capacitive humidity sensor, a
bandgap temperature sensor, analog and digital signal
processing, A/D converter, calibration data memory, and
a digital communication interface supporting I²C fast
mode.
The sensor covers a humidity measurement range of 0 to
100 %RH and a temperature measurement range of -30
to 100 °C with a typical accuracy of ±3 %RH and ±0.4°C.
The operation voltage of 1.8 V and the low power
consumption make the SHTW2 suitable for mobile or
wireless applications running on the tightest power
budgets. With the industry-proven quality and reliability of
Sensirion’s humidity and temperature sensors and
constant accuracy over a large measurement range, the
SHTW2 offers an unprecedented performance-to-price
ratio. Tape and reel packaging together with suitability for
standard SMD assembly processes make the SHTW2
predestined for high-volume applications.
Benefits of Sensirion’s CMOSens^® Technology
 High reliability and long-term stability
 Industry-proven technology with a track record of
more than 10 years
 Designed for mass production
 Optimized for lowest cost
 Best signal-to-noise ratio
Contents of this Data Sheet
1 Humidity and Temperature Sensor Specifications ... 2
2 Electrical Specifications ........................................... 3
3 Timing Specifications ............................................... 4
4 Interface Specifications ............................................ 5
5 Operation and Communication ................................ 6
6 Quality...................................................................... 9
7 Package and Traceability......................................... 9
8 Technical Drawings................................................ 10
9 Further Information ................................................ 12
Important Notices............................................................ 14
Block diagram
RH sensor
Signal conditioning
T sensor
Signal conditioning
ADC
analog
digital
Data processing and system control
Calibration mem.
I²C interface
VDD
VSS
SDA SCL
Figure 1 Functional block diagram of the SHTW2.
www.sensirion.com
Version 2 – August 2016
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