SLVSL52 September   2026 XTR100

ADVMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 ESD Protection
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Zero-Drift Clocking
      2. 7.1.2 Basic Functionality in Loop-Powered Transmitters
      3. 7.1.3 Current Consumption
      4. 7.1.4 System Error Estimation
    2. 7.2 Typical Applications
      1. 7.2.1 XTR100 4mA – 20mA Transmitter
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
      2. 7.2.2 XTR100 4mA – 20mA Low Voltage Transmitter
      3. 7.2.3 XTR100 Precision Divider and Adder
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 PSpice® for TI
        2. 8.1.1.2 TINA-TI™ Simulation Software (Free Download)
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

7.2.3 XTR100 Precision Divider and Adder

With excellent drift, XTR100 can also be used as a precision divider when voltages of 1/5 VREF or 4/5 VREF are required to be generated from VREF. As the XTR100 INP input pin can actually go above supply, XTR100 can be actually powered by 3.3V or 2.5V while dividing 5V voltage reference.

XTR100 XTR100 Precision 1:5 Divider With REF5450 Figure 7-5 XTR100 Precision 1:5 Divider With REF5450
XTR100 XTR100 Precision 4:5 Divider With REF3425 Figure 7-6 XTR100 Precision 4:5 Divider With REF3425

Another application of XTR100 is precisely adding two input signals in 1:4 ratio as in Figure 7-7.

XTR100 XTR100 Precision 1:4 Adder Figure 7-7 XTR100 Precision 1:4 Adder