XTR300

IA

CurrentCopy

OPA

R

GAIN

RG

1

RG

2

I

COPY

C

C

I

DRV

I

IA

IA

IN+

IA

IN-

Load

DRV

IA

OUT

V

IN

SET

V-

DGND

V+

XTR300

Digital

Control

OD

M2

M1

Error

Flags

EF

CM

EF

LD

EF

OT

(Optional)

InputSignal

V

REF

R

IA

1kW

R

SET

GND1

GND3

R

OS

R

IMON

1kW

GND2

XTR300

www.ti.com

SBOS336C

– JUNE 2005 – REVISED JUNE 2011

Industrial Analog Current/Voltage

OUTPUT DRIVER

Check for Samples: XTR300

1

FEATURES

APPLICATIONS

2

•

USER-SELECTABLE: Voltage or Current

•

PLC OUTPUT PROGRAMMABLE DRIVER

Output

•

INDUSTRIAL CROSS-CONNECTORS

•

+40V SUPPLY VOLTAGE

•

INDUSTRIAL HIGH-VOLTAGE I/O

•

•

3-WIRE-SENSOR CURRENT OR VOLTAGE

•

OUTPUT

•

SHORT- OR OPEN-CIRCUIT FAULT

•

±10V 2- AND 4-WIRE VOLTAGE OUTPUT

INDICATOR PIN

U.S. Patent Nos. 7,427,898, 7,425,848, and

•

NO CURRENT SHUNT REQUIRED

7,449,873

•

OUTPUT DISABLE FOR SINGLE INPUT MODE

Other Patents Pending

•

THERMAL PROTECTION

space

•

OVERCURRENT PROTECTION

space

•

SEPARATE DRIVER AND RECEIVER

DESCRIPTION

CHANNELS

The XTR300 is a complete output driver for industrial

•

DESIGNED FOR TESTABILITY

and process control applications. The output can be

configured as current or voltage by the digital I/V

select pin. No external shunt resistor is required. Only

external

gain-setting

resistors

and

a

loop

compensation capacitor are required.

The separate driver and receiver channels provide

flexibility. The Instrumentation Amplifier (IA) can be

used for remote voltage sense or as a high-voltage,

high-impedance measurement channel. In voltage

output mode, a copy of the output current is provided,

allowing calculation of load resistance.

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 on the IA input as well

as over-temperature conditions are indicated by the

error flags. The monitoring pins provide continuous

feedback about load power or impedance. For

additional protection, the maximum output current is

limited and thermal protection is provided.

The XTR300 is specified over the

−40°C to +85°C

Figure 1. XTR300 Basic Diagram

industrial temperature range and for supply voltages

up to 40V.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2005–2011, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.