Datasheet SHTC3
Humidity and Temperature Sensor IC
Ultra-low power consumption
Full battery supply voltage range (1.62 - 3.6 V)
Small DFN package: 2 × 2 × 0.75 mm3
Typical accuracy: ±2 %RH and ±0.2 °C
Fully calibrated and reflow solderable
Power-up and measurement within 1 ms
NIST traceability
Product Summary
The SHTC3 is a digital humidity and temperature sensor
designed especially for battery-driven 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 I2C Fast Mode
Plus. The small 2 × 2 × 0.75 mm3 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.
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
Block diagram
RH sensor
T sensor
Signal conditioning
Signal conditioning
Contents of this Data Sheet
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
www.sensirion.com
analog
ADC
digital
Data processing and system control
Calibration mem.
VDD
VSS
I2C interface
SDA
SCL
Figure 1 Functional block diagram of the SHTC3.
Version 2 – June 2019
1/13
1
Humidity and
Specifications
Temperature
Sensor
Every SHTC3 is individually tested and calibrated and is
identifiable by its unique serial number. The serial number is
stored in an unchangeable OTP memory.
For the calibration, Sensirion uses transfer standards, which
are subject to a scheduled calibration procedure. The
calibration of the reference, used for the calibration of the
transfer standards, is NIST traceable through an ISO/IEC
17025 accredited laboratory.
Accuracy tolerance1
Condition
Value
Unit
Typ.
2.0
see Figure 2
0.1
0.01
%RH
1
0 to 100
%RH
8
s
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