GXT311

1 Basic Performance
•Temperature measurement range: -55 ℃~+150 ℃
•Maximum accuracy: ± 0.3 ℃/± 0.5 ℃ (-40 ℃~+125 ℃)
•High resolution: 0.00390625 ℃ @ 16bits
•Power supply voltage: 1.4V~5.5V
• Conversion time: 32ms
•Low power consumption: conversion current of 40 μ A, turn off current of 0.2 μ A
• Digital output: compatible with SMBus and I2C interfaces
•GXT311B supports reset input
•GXT311 series all have SMBus alarm function
• Encapsulation information:

 
 
2 Application Scenarios
• Portable, battery powered applications
• Power supply temperature monitoring
• Thermal protection for external computer devices
• Laptop computer
• Battery management
• Constant temperature control
• Temperature of mechanical and electrical equipment
•Industrial control
• Testing equipment

3. Chip Overview
 GXT311 family is a high-precision, low-power digital temperature sensor including two models: GXT311A and GXT311B, which can be used for temperature measurement in communications, computers, consumer electronics, environment, industry and instrumentation applications. GXT311H series can provide a temperature measurement accuracy of ≤±0.3°C within the normal operating range of -40°C to +125°C; GXT311N series can provide a temperature accuracy of ≤±0.5°C within the normal operating range of -40°C to +125°C. GXT311 family have good temperature linearity and features an extended temperature measurement mode with a range from -55 °C to +150°C. 
The rated operating voltage range of GXT311 family is 1.4V~5.5V, and the maximum quiescent current during temperature measurement is as low as 40µA. The 16-bit ADC integrated inside the chip has a resolution as low as 0.00390625°C. 
GXT311 family adopts a 3.00mm×3.00mm DFN -8 package and is compatible with SMBus and I²C interfaces; GXT311A series can accommodate up to 32 slaves on one bus, and GXT311B series can accommodate up to 16 slaves on one bus. GXT311 family have SMBus alarm function. GXT311B provides input pins that can be used by the host computer to reset the chip. 

4.Ordering Information 

Note: 
 
A/B in the above table indicates the pin difference, where A indicates that pin 5 is the A2 address pin, and B indicates that pin 5 is the 
RESET reset pin; 
N/H represents the difference in temperature measurement accuracy, where N represents the ordinary temperature measurement accuracy, and H represents the high temperature measurement accuracy; 
D represents the DFN-8 package, and W represents the WLCSP-6 package; 

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