Introduce a tiny-size humidity & temperature sensor for surveillance & control application

ALex — Thu, 07 Oct 2021 00:36:27 GMT

Current Revision posted to Documents by ALex on 10/7/2021 12:36:27 AM

SHT1x (including SHT10, SHT11 and SHT15) is Sensirion’s family of surface mountable relative humidity and temperature sensors. The sensors integrate sensor elements plus signal processing on a tiny foot print 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. The applied CMOSenstechnology guarantees excellent reliability and long term stability. Both sensors are seamlessly coupled to a 14bit 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 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 2-wire serial interface and internal voltage regulation allows for easy and fast system integration. (Figure 1 below)The tiny size and low power consumption makes SHT1x the ultimate choice for even the most demanding applications.

Figure 1 Typical application circuit, including pull up resistor RP and decoupling of VDD and GND by a capacitor.

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) or on flex print (SHTA1).

Tags: tiny, humidity, size, control, application, temperature, surveillance, sensor