Description
The GW8245/46/47/48 is a new generation of single-chip integrated temperature and relative humidity sensor, which integrates high-sensitivity MEMS humidity-sensitive components on silicon-based CMOS wafers, thereby reducing signal transmission interference, reducing device area and improving product reliability. The GW8245/46/47/48 uses I2C protocol to communicate with the host. Internal Cyclic Redundancy Check (CRC) generator calculates 8- bit checksum and sends to host after each of 16-bit data. Each GW824x series has a unique 32-bit serial number. It has a temperature measurement range of -40°C ~ +125°C. The test accuracy in the range of -40°C ~ +125°C is ±0.2 °C for GW8245/46/47, ±0.1 °C for GW8248. Relative humidity range is 0 ~ 100% with accuracy of ±1.8 %RH for GW8245/46/47, ±1.0 %RH for GW8248. The GW8245/46/47 has a heater inside of package, which can be used for anti-dew. The GW8245/46/47/48 can be used to process temperature and relative humidity monitoring and
control in various applications. The 4-pin dual-flat, no-leads package is suitable for surface mount technology (SMT).
Typical Applications
- Automotive cabin
- Industrial control
- Smart home
- Consumer electronics
- Medical devices
Basic Application Diagram
Features
I2C protocol compatible, up to 1 MHz, with 2 slave addresses
Wide supply voltage range (1.6 V ~ 5.5 V)
Average current: 0.4 μA (1 Hz measurement rate)
Idle current: 0.1 μA
DFN4 package (1.5 mm x 1.5 mm x 0.54 mm)
Typical accuracy, GW8245/46/47
→Relative humidity: ±1.8 %RH
→Temperature: ±0.2 ℃
Typical accuracy, GW8248
→Relative humidity: ±1.0 %RH
→Temperature: ±0.1 ℃
Resolution
→Relative humidity: 0.01 %RH
→Temperature: 0.01 ℃
Power controllable heater
NIST traceability
Support reflow soldering
Support
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Sample and Buy
Cascode Technologies
B1503, 128, Beobwon-ro, Songpa-gu, Seoul, 05854, Korea
Touchworld
919ho, 224, Hwangsaeul-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13595, Republic of Korea
Farben
Block B, WeiDa Technology Park, No.15, Gaoxin North 6th road, Songpingshan Community, Xili Street, Nanshan District, Shenzhen, China