Datasheet STS3xA-DIS Automotive Grade High-Accuracy Digital Temperature Sensor IC Automotive grade, AEC-Q100 qualified Fully calibrated and linearized digital output Wide supply voltage range, from 2.4 V to 5.5 V I2C Interface with communication speeds up to 1 MHz and two user selectable addresses Typical accuracy of 0.3 C Very fast start-up and measurement time processing, two distinctive and user selectable I2C Product Summary addresses and communication speeds of up to 1 MHz. The STS3xA-DIS is Sensirions new high accuracy 2 The DFN package has a footprint of 2.5 x 2.5 mm while digital temperature sensor for automotive applications. It keeping a height of 0.9 mm. Additionally, the wide supply relies on the industry proven CMOSens technology, voltage range of 2.4 V to 5.5 V guarantees compatibility providing for increased intelligence, reliability and with a wide range of applications. Its design and test improved accuracy specifications compared to its coverage is specifically optimized for the high quality predecessors. Its functionality includes enhanced signal standards of the automotive industry. Benefits of Sensirions CMOSens Technology High reliability and long-term stability Industry-proven technology with a track record of more than 15 years Designed for mass production High process capability High signal-to-noise ratio Content 1 Sensor Performance............................................. 2 2 Specifications ....................................................... 3 3 Pin Assignment .................................................... 5 4 Operation and Communication ............................. 6 Figure 1 Functional block diagram of the STS3xA-DIS. 5 Packaging ........................................................... 12 The CMOSens technology allows providing for a fully 6 Shipping Package .............................................. 14 2 calibrated I C signal. 7 Quality ................................................................ 15 8 Ordering Information........................................... 15 9 Further Information ............................................. 15 www.sensirion.com December 2019 - Version 2 1/18 Datasheet STS3xA-DIS 1 Sensor Performance 1.1 Temperature Sensor Performance Parameter Condition Value Units 1 Accuracy tolerance STS30A-DIS typ., 0C to 65C 0.3 C 1 Accuracy tolerance STS31A-DIS typ., -40C to 90C C 0.3 Low 0.24 C 2 Repeatability Medium 0.12 C High 0.06 C Resolution Typ. 0.01 C Specified Range - -40 to 125 C 3 Response time >2 s 63% Long Term Drift max <0.03 C/yr Table 1 Temperature sensor specification. STS30A STS31A DDDDDDTTTTTT ((((((C)C)C)C)C)C) DDDDDDTTTTTT ((((((C)C)C)C)C)C) 1,5 1,5 maximal tolerance maximal tolerance typical tolerance typical tolerance 1,0 1,0 0,5 0,5 0,0 0,0 -40 -20 0 20 40 60 80 100 120 -40 -20 0 20 40 60 80 100 120 Temperature (C) Temperature (C) Figure 2 Temperature accuracy of the STS30A sensor. Figure 3 Temperature accuracy of the STS31A sensor. 1 For definition of typical and maximum accuracy tolerance, please refer to the document Sensirion Humidity Sensor Specification Statement. 2 The stated repeatability is 3 times the standard deviation (3) of multiple consecutive measurements at the stated repeatability and at constant ambient conditions. It is a measure for the noise on the physical sensor output. 3 Temperature response times strongly depend on the type of heat exchange, the available sensor surface and the design environment of the sensor in the final application. www.sensirion.com December 2019 - Version 2 2/18