SBOSAK6A June   2025  – December 2025 THS4535

PRODUCTION DATA  

  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 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Output Common-Mode
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power-Down Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Output Common-Mode Voltage
        1. 8.1.1.1 Resistor Matching
      2. 8.1.2 Data Converters
      3. 8.1.3 Single-Supply Applications
    2. 8.2 Typical Application
      1. 8.2.1 Typical Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Board Layout Recommendations
      2. 8.4.2 Layout Examples
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.3.1 Output Common-Mode

The THS4535 output common-mode pin allows the FDA to servo the output pins (VOUT+ and VOUT−) so that the average voltage of these two pins matches the VOCM pin. VOCM is especially useful when the input common-mode voltage does not match the desired output common-mode voltage, such as in ADC drive. For example, in the case of a high-side current sense measurement there is often a large common-mode voltage followed by a small differential voltage. If the high-side shunt resistor common-mode voltage is close to the positive supply (Figure 7-1), set the VOCM pin to ½ the ADC reference voltage, and the differential output voltage is gained up and balanced around the VOCM voltage.

THS4535 High-Side Current-Sense Example Figure 7-1 High-Side Current-Sense Example
Note: The THS4535 VOCM pin has an internal voltage divider with two 500kΩ resistors, one connected to VS+ and one connected to VS–. If this pin is left unconnected connect a 1nF capacitor from VOCM to ground to help stabilize the pin voltage internally.