GX451

1 Basic Performance
• Temperature measurement range:
Local and remote channels: -55 ℃~150 ℃
Local temperature measurement accuracy: ± 1.0 ° C
Remote temperature measurement accuracy: ± 2.0 ° C
Local and remote temperature measurement resolution: 0.0625 ° C (12 bits)
• Packaging: DFN-8/WSON-8
• Power supply voltage: 1.7 V~5.5 V
• Low static current
Normal operation: 27μA(0.0625Hz)
 165μA（16Hz） 
Off mode: 3μA
• Digital output: compatible with SMBus and I2C interfaces
• Chip functionality
- Elimination of series resistance
- η factor and temperature measurement offset correction
- Programmable digital filter
- Remote temperature measurement diode misconnection detection
 
2 Application Scenarios
• Processor and FPGA temperature monitoring
• Smartphones and tablets
• Servers, desktops, and laptops

3. Chip Overview
GX451 is a high-precision, low-power remote temperature sensor with a built-in local temperature measurement channel. Remote temperature measurement probes usually use NPN tubes, PNP tubes, or diodes, integrated into the microprocessor or FPGA that needs to be measured. The local and remote temperature measurement results are both output in the form of 12 digits, with a resolution of 0.0625 ° C. GX451 can provide an extended temperature measurement mode to achieve temperature measurement within the range of -55 ℃ to 150 ℃. GX451 supports SMBus communication protocol.  
GX451 has temperature measurement auxiliary functions such as series resistance elimination, programmable non ideal factor (η factor) and temperature offset correction, programmable digital filters, etc., which can greatly improve the accuracy and anti-interference of remote temperature measurement.

Device Information

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