Overview
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1
Overview
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 is normally connected for remote voltage sensing in voltage output mode.
Alternatively, it 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, make
remote configuration and troubleshooting possible. Fault conditions on the output and the instrumentation
amplifier (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.
1.1
XTR300EVM Kit Contents
Table 1
details the contents of the XTR300EVM kit. Contact the Texas Instruments Product Information
Center nearest to you if any component is missing.
Table 1. Contents of XTR300EVM Kit
Item
Quantity
XTR300EVM PCB Evaluation Board
1
1.2
Related Documentation from Texas Instruments
The following document provides information regarding Texas Instruments integrated circuits used in the
assembly of the XTR300EVM. This user's guide is available from the TI web site under literature number
SBOU034 . Any letter appended to the literature number corresponds to the document revision that is
current at the time of the writing of this document. Newer revisions may be available from the TI web site
at
http://www.ti.com/
, or call the Texas Instruments Literature Response Center at (800) 477-8924 or the
Product Information Center at (972) 644-5580. When ordering, identify the document by both title and
literature number
Table 2. Related Documentation
Document
Literature Number
XTR300 Product Data Sheet
SBOS336
2
XTR300EVM
SBOU034A – February 2006 – Revised February 2013
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