SHTC1

Datasheet SHTC1 Humidity and Temperature Sensor IC Best performance-to-price ratio Fully calibrated and reflow solderable Ultra-low power consumption Power-up and measurement within 1 ms 1.8 V supply voltage Ultra-small DFN package: 2 × 2 × 0.75 mm3 Typical accuracy: ±3 %RH and ±0.3 °C Product Summary The SHTC1 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 I2C fast mode. The ultra-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 –30 to 100 °C with a typical accuracy of ±3 %RH and ±0.3°C. The operation voltage of 1.8 V and an energy budget below 1 µJ per measurement make the SHTC1 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 SHTC1 offers an unprecedented performance-to-price ratio. Tape and reel packaging together with suitability for standard SMD assembly processes make the SHTC1 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 Low signal noise 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 Important Notices...................................................................... 14 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 SHTC1. Version 4 – August 2015 1/14 1 Humidity and Temperature Sensor Specifications Temperature Relative Humidity Parameter Accuracy tolerance1 Conditions Value Units Typ. ±3.0 see Figure 2 0.1 0.01 %RH Resolution3 Max. - Hysteresis - Repeatability2 Specified range4 extended5 time6 τ 63% Typ. Response Long-term drift7 %RH %RH %RH Parameter Value Units Typ. ±0.3 see Figure 3 0.1 0.01 –30 to +100 °C °C °C °C °C