Digital Humidity Sensor SHT1x (RH/T)
Not Recommended for New Designs (NRND)
We recommend the humidity sensor SHT3x as successor of SHT1x.
SHT3x offers a wide range of communication protocols, advanced performance as well as additional features.
SHT1x is only available to existing customers for support of their running production.
The SHT1x digital humidity sensor is a reflow solderable sensor. The SHT1x series consists of a low-cost version with the SHT10 humidity sensor, a standard version with the SHT11 humidity sensor, and a high-end version with the SHT15 humidity sensor. As with every other Sensirion sensor type from the SHTxx humidity sensor family, they are fully calibrated and provide a digital output.
The SHT1x humidity sensor series (including SHT10, SHT11, and SHT15) is Sensirion’s family of surface-mountable relative humidity sensors. The humidity sensors integrate sensor elements plus signal processing on a tiny footprint and provide a fully calibrated digital output. A unique capacitive sensor element is used for measuring relative humidity, while temperature is measured by a band-gap sensor. Its CMOSens® technology guarantees excellent reliability and long-term stability. The humidity sensors are seamlessly coupled to a 14-bit-analog-to-digital converter and a serial interface circuit. This results in superior signal quality, a fast response time, and insensitivity to external disturbances (EMC).
Each SHT1x humidity sensor is individually calibrated in a precision humidity chamber. The calibration coefficients are programmed into an OTP memory on the chip. These coefficients are used to internally calibrate the signals from the sensors. The two-wire serial interface and internal voltage regulation allows for easy and fast system integration. SHT1x is supplied in a surface-mountable LCC (leadless chip carrier), which is approved for standard reflow soldering processes. The same sensor is also available with pins (SHT7x).
Overview of SHT1x Versions
|Supply Voltage Range V||Interface||Package Size|
(L x W x H) mm
|SHT10||Low-Cost||±4.5||±0.5||2.4 to 5.5||Digital Sbus||7.5 x 4.9 x 2.6|
|SHT11||Standard||±3||±0.4||2.4 to 5.5||Digital Sbus||7.5 x 4.9 x 2.6|
|SHT15||High-End||±2||±0.3||2.4 to 5.5||Digital Sbus||7.5 x 4.9 x 2.6|
|Size||7.5 x 4.9 x 2.6 mm|
|Output||digital (2-wire Interface)|
|Supply voltage range||2.4 to 5.5 V|
|Energy consumption||80µW (at 12bit, 3V, 1 measurements/ s)|
|RH operating range||0 - 100% RH|
|T operating range||-40 to +125°C (-40 to +257°F)|
|RH response time||8 sec (tau63%)|
|Packaging||Tape & Reel, sealed in ESD bag|
SHT10: 2000 pieces
SHT11: 100, 400 or 2000 pieces
SHT15: 100 or 400 pieces