Digital Humidity Sensor SHTW1 (WLCSP)
Not Recommended for New Designs (NRND)
SHTW1 is replaced by SHTW2.
SHTW2 is pin-to-pin and protocol compatible to SHTW1 and has identical outer dimensions as well as functionality.
SHTW1 is only available to existing customers for support of their running production.
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 has a tiny footprint of 1. 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%)|
|Package type||Wafer-Level-Chip-Scale-Package (WLCSP)|