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XRT111

REGF

Regulator

Out

Signal

Input

REGS

24V

I-Mirror

VSP

OutputDisable

OutputFailure

SET

710

GND

I =10

OUT

()

VIN

SET

I 10

OUT

SET

= · I

XTR111

(1)

15W

10nF

0mAto20mA

4mAto20mA

Load

(±LoadGround)

XTR111

www.ti.com

SBOS375C –NOVEMBER 2006– REVISED JUNE 2011

Precision Voltage-to-Current

Converter/Transmitter

Check for Samples: XTR111

FEATURES

DESCRIPTION

The XTR111 is a precision voltage-to-current

• EASY-TO-DESIGN INPUT/OUTPUT RANGES:

converter designed for the standard 0mA–20mA or

0mA–20mA, 4mA–20mA, 5mA–25mA AND

4mA–20mA analog signals, and can source up to

VOLTAGE OUTPUTS

36mA. The ratio between input voltage and output

• NONLINEARITY: 0.002%

current is set by the single resistor R

SET

. The circuit

• LOW OFFSET DRIFT: 1μV/°C

can also be modified for voltage output.

• ACCURACY: 0.015%

An external P-MOSFET transistor ensures high

• SINGLE-SUPPLY OPERATION

output resistance and a broad compliance voltage

• WIDE SUPPLY RANGE: 7V to 44V

range that extends from 2V below the supply voltage,

• OUTPUT ERROR FLAG (EF)

VSP

, to voltages well below GND.

• OUTPUT DISABLE (OD)

The adjustable 3V to 15V sub-regulator output

• ADJUSTABLE VOLTAGE REGULATOR:

provides the supply voltage for additional circuitry.

3V to 15V

The XTR111 is available in MSOP and DFN

surface-mount packages.

APPLICATIONS

• UNIVERSAL VOLTAGE-CONTROLLED

CURRENT SOURCE

• CURRENT OR VOLTAGE OUTPUT FOR 3-WIRE

SENSOR SYSTEMS

• PLC OUTPUT PROGRAMMABLE DRIVER

• CURRENT-MODE SENSOR EXCITATION

NOTE: (1) See Application Information,

External Current Limit Circuits for other

options.

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.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

XTR111

SBOS375C –NOVEMBER 2006– REVISED JUNE 2011

www.ti.com

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with

appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more

susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

ORDERING INFORMATION

(1)

PACKAGE

PRODUCT PACKAGE-LEAD DESIGNATOR PACKAGE MARKING

DFN-10 DRC BSV

XTR111

MSOP-10 DGQ CCM

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the

device product folder at www.ti.com.

ABSOLUTE MAXIMUM RATINGS

(1) (2)

Over operating free-air temperature range (unless otherwise noted)

XTR111 UNIT

Power Supply Voltage, V

VSP

+44 V

Voltage at SET

(3)

–0.5 to +14 V

Voltage at IS

(3) (4)

VSP

) – 5.5 to (V

VSP

) + 0.5 V

Voltage at REGS, REGF, VIN, OD, EF –0.5 to (V

VSP

) + 0.5 V

Voltage at REGF, VG –0.5 to (V

VSP

) + 0.5 V

Current into any pin

(3) (4) (5)

±25 mA

Output Short-Circuit Duration

(6)

VG Continous to common and V

VSP

REGF Continous to common and V

VSP

Operating Temperature –55 to +125 °C

Storage Temperature –65 to +150 °C

Electrostatic Discharge Rating (HBM) 2000 V

(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may

degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond

those specified is not supported.

(2) Refer to the Package Option Addendum at the end of this document for lead temperature ratings.

(3) Input terminals are diode-clamped to the power-supply rails. Input signals that can swing more than 0.5V beyond the supply rails must

be current limited.

(4) The IS pin current absolute maximum rating is +25mA and –50mA.

(5) See the following sections Explanation of Pin Functions, External MOSFET, and Voltage Regulator in Application Information regarding

safe voltage ranges and currents.

(6) See text in Application Information regarding safe voltage ranges and currents.

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