SBOS092C June   1998  – January 2026 XTR106

PRODUCTION DATA  

  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 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 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 Linearization
      2. 6.3.2 Reverse-Voltage Protection
      3. 6.3.3 Overvoltage Surge Protection
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 External Transistor
      2. 7.1.2 Loop Power Supply
      3. 7.1.3 Bridge Balance
      4. 7.1.4 Underscale Current
      5. 7.1.5 Low-Impedance Bridges
      6. 7.1.6 Other Sensor Types
      7. 7.1.7 Radio Frequency Interference
      8. 7.1.8 Error Analysis
    2. 7.2 Typical Applications
    3. 7.3 Layout
    4. 7.4 Layout Guidelines
  9. 8 Device and Documentation Support
    1. 8.1 Device Nomenclature
    2. 8.2 Documentation Support
    3. 8.3 Related Documentation
    4. 8.4 Receiving Notification of Documentation Updates
    5. 8.5 Support Resources
    6. 8.6 Trademarks
    7. 8.7 Electrostatic Discharge Caution
    8. 8.8 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

7.1.5 Low-Impedance Bridges

The XTR106 two available excitation voltages (2.5V and 5V) allow the use of a wide variety of bridge values. Bridge impedances as low as 1kΩ can be used without any additional circuitry. Lower impedance bridges can be used with the XTR106 by adding a series resistance to limit excitation current to ≤ 2.5mA (Figure 7-5). Add resistance to the upper and lower sides of the bridge to keep the bridge output within the 1.1V to 3.5V common-mode input range. Bridge output is reduced so a preamplifier can be needed to reduce offset voltage and drift.

XTR106 Bridge Transducer Transfer Function with Parabolic NonlinearityFigure 7-3 Bridge Transducer Transfer Function with Parabolic Nonlinearity

XTR106 Nonlinearity vs Stimulus
Figure 7-4 Nonlinearity vs Stimulus
XTR106 350Ω Bridge With x50 Preamplifier
(1) Shown connected to correct positive bridge nonlinearity. For negative bridge nonlinearity, see Figure 6-3.
Figure 7-5 350Ω Bridge With x50 Preamplifier