Digital Humidity Sensor SHTW1 (WLCSP)
The digital SHTW1 humidity sensor is the result of Sensirion’s pursuit of consistent size reductions in our sensors. This chip-scale package humidity sensor is only one-seventh of the size of a comparable DFN humidity sensor and therefore opens up countless opportunities for the Internet of Things, wearable, and mobile markets.
The SHTW1 humidity sensor is a digital humidity sensor in a wafer-level chip-scale package (WLCSP). This type of package opens up a new category of ultra-small humidity sensors, which are suitable for applications with the tightest space constraints. The SHTW1 is designed especially for high-volume consumer electronics applications. The sensor is based on Sensirion’s CMOSens® technology, which offers a complete sensor system on a single chip, consisting of 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.
The humidity sensor covers a humidity measurement range of 0 to 100 %RH and a temperature measurement range of –30°C to 100°C with a typical accuracy of ±3 %RH and ±0.4°C. The operating voltage of 1.8 V and the low power consumption make the SHTW1 humidity sensor suitable for wearable 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 SHTW1 humidity sensor offers an unprecedented price-performance ratio. Tape and reel packaging together with its suitability for standard SMD assembly processes make the SHTW1 predestined for high-volume applications.
|Supply voltage||1.8 V|
|Power consumption||2µW (at 1 reading per second in low power mode)|
|Measuring range (RH)||0 - 100 % relative humidity|
|Measuring range (T)||-30 to +100°C (-22 to +212°F)|
|Response time (RH)||8s (tau63%)|
Accuracy Limits for Relative Humidity and Temperature
The new SHT3x humidity and temperature sensor series takes sensor technology to a new level with unmatched sensor performance, range of variants, and new features. Suitable for a wide variety of markets, such as home appliances, medical, IoT, HVAC, or industrial. Also available in automotive grade.