SBOU034B February   2006  – October 2025 XTR300

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 XTR300EVM Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Evaluation Setup
    2. 2.2 Jumper Configuration Settings
    3. 2.3 Features
      1. 2.3.1 Input Signal
      2. 2.3.2 Reference Voltage
      3. 2.3.3 XTR300EVM Output
      4. 2.3.4 Error Flags
      5. 2.3.5 IMON: Current Monitor Output
      6. 2.3.6 IAOUT: Voltage Monitor
      7. 2.3.7 Other Test Points
    4. 2.4 Output Mode Configurations
      1. 2.4.1 Current Mode Configurations
        1. 2.4.1.1 Single-Ended Current Output
        2. 2.4.1.2 Bidirectional Current Output
        3. 2.4.1.3 Verifying Acceptable Load in Current Mode
      2. 2.4.2 Voltage Mode Configurations
        1. 2.4.2.1 Single-Ended Voltage Output
        2. 2.4.2.2 Bidirectional Voltage Output
        3. 2.4.2.3 Verifying Acceptable Load in Voltage Mode
    5. 2.5 Power Requirements
  8. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 XTR300EVM Top Layer Silkscreen
    3. 3.3 Bill of Materials
  9. 4Additional Information
    1. 4.1 Trademarks
  10. 5Related Documentation
  11. 6Revision History

1.1 Introduction

The XTR300 is a universal output driver for industrial and process-control applications. This device can be configured as a current or voltage output device without requiring an external shunt resistor. The XTR300 requires minimal external circuitry, including a few gain-setting resistors and a loop compensation capacitor. The XTR300 offers separate driver and receiver channels for improved flexibility. The internal instrumentation amplifier (IA) is normally connected for remote voltage sensing in voltage output mode. Alternatively, the IA can be used as a high-voltage, high-impedance measurement channel. In voltage output mode, a copy of the output current is provided to allow for easy testing of the load condition and eventual calculation of the load resistance. In current output mode, the load voltage can be monitored.

The XTR300 device provides configuration and notification functionality by using the error flag and digital control pins. The digital output selection capability, together with the error flags and monitor pins, makes remote configuration and troubleshooting possible. Fault conditions on the output and the IA input, as well as overtemperature conditions, are indicated by the error flags. The monitoring pins, IMON and IAOUT, provide continuous feedback regarding load power or impedance. For additional protection, the maximum output current is internally limited and thermal protection is provided.

The XTR300EVM highlights and demonstrates various configurations of the XTR300. The EVM allows the user to modify the inputs, configuration pins, and support circuitry to test and evaluate desired behavior.

This user’s guide describes the characteristics and operation of the XTR300 evaluation module (EVM) board. This document also describes how to set up and configure the hardware and reviews various aspects of the part's operation. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the XTR300EVM. This user’s guide also includes information regarding operating procedures, input or output connections, an electrical schematic, printed circuit board (PCB) layout, and a parts list for the EVM.