SBAS969 September   2026 ADS111C02

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 I2C Timing Requirements
    7. 6.7 Timing Diagram
  8. 7 Parameter Measurement Information
    1. 7.1 Noise Performance
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Multiplexer
      2. 8.3.2 Voltage Reference
      3. 8.3.3 Oscillator
      4. 8.3.4 Output Data Rate and Conversion Time
      5. 8.3.5 Low-Noise PGA
      6. 8.3.6 Temperature Sensor
        1. 8.3.6.1 12-Bit Temperature Data Format (ADS101C0x)
        2. 8.3.6.2 Converting from Digital Codes to Temperature, 12-Bit Temperature Sensor Data
        3. 8.3.6.3 14-Bit Temperature Data Format (ADS101C0x)
        4. 8.3.6.4 Converting from Digital Codes to Temperature, 14-Bit Temperature Sensor Data
      7. 8.3.7 Digital Comparator
      8. 8.3.8 Conversion-Ready Pin
      9. 8.3.9 SMBus Alert Response
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power-Up and Reset
      2. 8.4.2 Operating Modes
        1. 8.4.2.1 Single-Shot Conversion Mode
        2. 8.4.2.2 Continuous-Conversion Mode
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
      2. 8.5.2 I2C Address Selection
      3. 8.5.3 Serial Clock (SCL) and Serial Data (SDA)
      4. 8.5.4 I2C Interface Speed
      5. 8.5.5 I2C Data Transfer Protocol
      6. 8.5.6 Writing To and Reading From the Registers
      7. 8.5.7 Timeout
      8. 8.5.8 I2C General-Call (Software Reset)
    6. 8.6 Conversion Data Format
  10. 9 Register Maps
  11. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Serial Interface Connections
      2. 10.1.2 Connecting Multiple Devices
      3. 10.1.3 Single-Ended Inputs
      4. 10.1.4 Unused Inputs and Outputs
      5. 10.1.5 Input Protection
      6. 10.1.6 Analog Input Filtering
      7. 10.1.7 Duty Cycling For Low Power
      8. 10.1.8 I2C Communication Sequence Example
    2. 10.2 Typical Applications
      1. 10.2.1 K-Type Thermocouple with Thermistor Cold-Junction Compensation
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
      2. 10.2.2 Server Card System Monitoring Application
    3. 10.3 Power Supply Recommendations
      1. 10.3.1 Power-Supply Sequencing
      2. 10.3.2 Power-Supply Decoupling
    4. 10.4 Layout
      1. 10.4.1 Layout Guidelines
      2. 10.4.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.3.6.3 14-Bit Temperature Data Format (ADS101C0x)

The ADS111C0x temperature data are represented as a 14-bit result that is left-justified within the 16-bit conversion result. One 14-bit LSB equals 0.03125°C. Negative numbers are represented in binary two's complement format, as shown in Table 8-4

Table 8-4 14-Bit Temperature Data Format (ADS111C0x)
TEMPERATURE (°C) DIGITAL OUTPUT (BINARY) HEX
128 01 0000 0000 0000 1000h
50 00 0110 0100 0000 0640h
25 00 0011 0010 0000 0320h
0.25 00 0000 0000 1000 0008h
0.03125 00 0000 0000 0001 0001h
0 00 0000 0000 0000 0000h
–0.25 11 1111 1111 1000 3FFFh
–25 11 1100 1110 0000 3CE0h
–40 11 1011 0000 0000 3B00h