www.sensirion.com Version 0.4 – January 2018 1/13
Datasheet SHTC3
Humidity and Temperature Sensor IC
Fully calibrated and reflow solderable
Ultra-low power consumption
Power-up and measurement within 1 ms
Broad supply voltage range of 1.62 V to 3.6 V
Ultra-small DFN package: 2 × 2 × 0.75 mm
3
Typical accuracy: ±2 %RH and ±0.2 °C
Benefits of Sensirion’s CMOSens
®
Technology
High reliability and long-term stability
Industry-proven technology with a track record of more than
15 years
Designed for mass production
Optimized for lowest cost
High signal-to-noise ratio
Contents of this Data Sheet
Important Notice: ....................................................... 2
1 Humidity and Temperature Sensor
Specifications .................................................... 2
2 Electrical Specifications ..................................... 3
3 Timing Specifications......................................... 4
4 Interface Specifications ..................................... 6
5 Operation and Communication .......................... 6
6 Quality ............................................................... 9
7 Packaging and Traceability ............................... 9
8 Ordering Information.......................................... 9
9 Technical Drawings ......................................... 10
10 Further Information .......................................... 11
Block diagram
Figure 1 Functional block diagram of the SHTC3.
RH sensor
T sensor
Signal conditioning
Signal conditioning
ADC
I
2
C interface
Calibration mem.
VDD
VSS
SDA
SCL
Data processing and system control
analog
digital
Product Summary
The SHTC3 is a digital humidity and temperature sensor
designed especially for high-volume consumer electronics
applications. This sensor is strictly designed to overcome
conventional limits for size, power consumption, and
performance to price ratio in order to fulfill current and
future requirements. Sensirion’s CMOSens
®
technology
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 I
2
C fast mode. The
ultra-small, 2 × 2 × 0.75 mm
3
DFN package enables
applications in even the most limited of spaces.
The sensor covers a humidity measurement range of 0 to
100 %RH and a temperature measurement range of
-40 °C to 125 °C with a typical accuracy of ±2 %RH and
±0.2°C. The broad supply voltage of 1.62 V to 3.6 V and
an energy budget below 1 µJ per measurement make the
SHTC3 suitable for mobile or wireless applications
powered by batteries. With the industry-proven quality and
reliability of Sensirion’s humidity and temperature sensors
and constant accuracy over a large measurement range,
the SHTC3 offers best performance-to-price ratio. Tape
and reel packaging together with suitability for standard
SMD assembly processes make the SHTC3 predestined
for high-volume applications.
