SPS1M002PET ON Semiconductor

SPSXM002PET Smart Passive Sensor for Direct Moisture Sensing Description The SPSXM002PET is a batteryfree wireless sensor for moisture level detection on nonmetal surfaces. Smart Passive Sensors use the www.onsemi.com MagnusS2 Sensor IC from RF Micron, a UHF RFID chip that is powered by RF energy harvesting from the UHF reader. The MagnusS2 utilizes the patented selftuning Chameleon engine that adapts the RF front end to optimize performance in various environmental conditions. Changes in antenna detuning due to moisture contact are digitized by the sensor which can then be read by a standard EPC Gen 2 compliant reader. These sensor tags function in either the FCC defined UHF band or the ETSI UHF band. The small form factor and batteryfree capabilities of Smart Passive Sensors allow them to be designed into applications where size and RF TAG 101.60x31.75MM accessibility are at a premium. CASE 888AD/AE Features Single IC, Smart Passive Sensing ORDERING INFORMATION Small Form Factor Packages See detailed ordering and shipping information on page 5 of Direct Moisture Contact Sensing this data sheet. Onchip RSSI Sensor 64 bit TID and 128 bit EPC + 144 Bit User Defined Memory EPC Class 1 Gen 2 v.2.0.0 ISO 18 0006C Compliant These Devices are PbFree, Halogen Free/BFR Free and are RoHS Compliant Applications Medical Industrial Facilities Management MAXIMUM RATINGS (T = 25C unless otherwise noted) A Rating Symbol Max Unit Human Body Model (Note 1) ESD 1 kV Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Nonrepetitive current pulse at T = 25C, per JS001 waveform. A THERMAL CHARACTERISTICS Characteristic Symbol Max Unit Operating and Storage Temperature T , T 20 to +85 C OP stg Range (Note 2) 2. Shelf Life minimum 2 years from date of manufacturing. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: March, 2019 Rev. 1 SPSXM002/DSPSXM002PET Table 1. ELECTRICAL CHARACTERISTICS (T = 25C unless otherwise noted) A Parameter Min Typ Max Units Operating Frequency (Note 3) FCC 902 928 MHz ETSI 866 868 MHz Read Sensitivity (Note 4) 16 dBm Sensor Code 0 31 codes RSSI Code 0 31 codes TID 64 bits EPC (Note 5) 128 bits User Memory 144 bits Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 3. Band specific part numbers can be found in the ordering information table 4. Measured in free space, anechoic chamber with a linearly polarized antenna at 50 cm read distance 5. User Memory can be configured to be an EPC extension, effectively making a 272 bit EPC code Figure 1. Moisture Contact Test Area Moisture Sensing The SPSXM002 generates sensor codes from 0 to 31, with capability, the sensor code does shift over frequency as it a free space sensor code average of 18. Figure 1 shows the tunes itself to maximize reflected power to the reader. This moisture sensitive portion of the tag used to collect the data makes it important to account for the frequency at which the in Figure 2. The SPSXM002 with a damp cloth over the sensor was read. This factor must be accounted for in the sensor yields a sensor value 5 codes lower than the dry test. reader software in order to ensure reliable wet vs. dry reads. For the moisture test seen in Figure 1, the sensor value shifts For more information on how Smart Passive Sensors approximately 5 codes when water is detected on the surface generate sensor codes, please refer to Application Note of the tag. Due to the Smart Passive Sensors selftuning AND9209/D. DRY WET Figure 2. Sensor Code for Wet and Dry Conditions www.onsemi.com 2