SNIS137G August   2004  – August 2019 LM95071

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Temperature Monitor Application
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Function
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Ratings
    4. 6.4 Thermal Information
    5. 6.5 Temperature-to-Digital Converter Characteristics
    6. 6.6 Logic Electrical Characteristics - Digital DC Characteristics
    7. 6.7 Logic Electrical Characteristics - Serial Bus Digital Switching Characteristics
    8. 6.8 Timing Diagrams
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power Up and Power Down
      2. 8.3.2 Temperature Data Format
      3. 8.3.3 Tight Accuracy, Fine Resolution and Low Noise
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown Mode/Manufacturer ID
    5. 8.5 Programming
      1. 8.5.1 Serial Bus Interface
      2. 8.5.2 Serial Bus Timing Diagrams
    6. 8.6 Register Maps
      1. 8.6.1 Internal Register Structure
        1. 8.6.1.1 Configuration Register
        2. 8.6.1.2 Temperature Register
        3. 8.6.1.3 Manufacturer/Device ID Register
  9. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Community Resource
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  10. 10Mechanical, Packaging, and Orderable Information

8.3.2 Temperature Data Format

Temperature data is represented by a 14-bit, two's complement word with an LSB (Least Significant Bit) equal to 0.03125°C:

Table 1. Digital Output for Temperature Data

Temperature Digital Output
Binary Hex
+150°C 0100 1011 0000 0011 4B03
+125°C 0011 1110 1000 0011 3E83
+25°C 0000 1100 1000 0011 0C83
+0.03125°C 0000 0000 0000 0111 0007
0°C 0000 0000 0000 0011 0003
−0.03125°C 1111 1111 1111 1111 FFFF
−25°C 1111 0011 1000 0011 F383
−40°C 1110 1100 0000 0011 EC03

The first data byte is the most significant byte with most significant bit first, permitting only as much data as necessary to be read to determine temperature condition. For instance, if the first four bits of the temperature data indicate an overtemperature condition, the host processor could immediately take action to remedy the excessive temperatures.