SHTC3

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 .......................................... 12 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 3 – January 2021 1/14 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