GXTR308

1 Basic Performance
•Temperature measurement range: -55 ℃~+150 ℃
•Temperature measurement accuracy (-40 ℃~+125 ℃):
•Local channel: ± 0.5 ℃
•Remote channel: ± 1 ℃
•High resolution: 0.0078125 ℃, 16bits
•Single channel conversion time: 16ms
• Digital output: compatible with SMBus and I2C interfaces
•Power supply voltage: 2.7V~5.5V
•I2C interface communication voltage: 1.6~5.5V
•Low static current (3.3V, 27 ℃):
•Local channel: 180 μ A
•Remote channel: 360 μ A
•Off mode: 1.2 μ A
• Supports register block reading
•Remote diode: with functions such as series resistance elimination, η factor correction, temperature imbalance correction, and open circuit detection
• Encapsulation information:

2 Application Scenarios
MCU, GPU, FPGA, DSP, and CPU temperature monitoring
• Server, computer, switch
• Highly integrated medical system

3. Chip Overview
GXTR308 is a high-precision, low-power digital temperature sensor compatible with SMBus and I2C interfaces. In addition to the local temperature where the chip is located, up to eight remote diodes can be monitored simultaneously for remote temperature in their respective areas. The typical application scenario of GXTR308 is real-time remote temperature monitoring of complex systems such as MCU, GPU, and FPGA. GXTR308 has functions such as series resistance elimination, programmable η factor correction, programmable temperature offset correction, and programmable temperature threshold, providing a reliable high-precision, low-power temperature monitoring solution.  
The local channel and 8 remote channels of GXTR308 can be independently programmed and controlled. When the temperature at the measured location exceeds the corresponding temperature threshold, an alarm can be triggered. Each channel of GXTR308 has a programmable temperature threshold hysteresis setting to avoid repeated alarms caused by the measured temperature being near the threshold.  
The typical temperature measurement accuracy values for the local and remote channels of GXTR308 are ± 0.5 ℃ and ± 1 ℃, respectively, and both provide a temperature measurement resolution of 0.0078125 ℃ and a temperature measurement range of -55 ℃ to+150 ℃. The power supply voltage range of GXTR308 is 2.7V~5.5V, and it provides a 16 Ball WLCSP with a size of 1.6mm × 1.6mm and a 16 Pin QFN package with a size of 3mm × 3mm for integration into various systems.
 

Ordering Information 

Note: W indicates the package form of WLCSP-16 and Q indicates the package form of QFN-16. 

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