Sensirion recently developed a new digital humidity sensor SHTW2 based on wafer-level chip-scale packaging. SHTW2 has a small footprint of 1.3 x 0.7 x 0.5 mm3 and comes in a flip chip package. This new development establishes a new category of ultra-small humidity sensors and creates new opportunities for the Internet of Things, mobile and wearable markets.
The SHTW2 humidity sensor provides a complete sensor system on a single chip, including a capacitive humidity sensor, a band-gap temperature sensor, analog and digital signal processing, A/D converter, calibration data memory, and a digital communication interface supporting I2C fast mode.
This new digital humidity sensor covers a humidity range of 0 to 100 %RH with accuracy of ±3 % RH and a temperature range of –30°C to 100°C with accuracy of ±0.4 °C. SHTW2 can be used for wearable applications which have strict control over power budgets thanks to operating voltage of 1.8 V and the low power consumption.
Tape and reel packaging together and its suitability for standard SMD assembly processes make SHTW2 suitable for high-volume applications.
More information can be found at: Sensirion.