XRT111

3V

REGF

Regulator

Out

Signal

Input

REGS

24V

I-Mirror

VSP

1

9

8

2

VG

IS

OutputDisable

OutputFailure

OD

EF

6

4

5

SET

7

10

GND

I

=10

OUT

()

VVIN

RSET

I

10

OUT

SET

=

· I

XTR111

Q

2

(1)

Q

1

15W

15W

S

D

G

10nF

0mAto20mA

4mAto20mA

Load

(±LoadGround)

3

XTR111

www.ti.com

SBOS375C

– NOVEMBER 2006 – REVISED JUNE 2011

Precision Voltage-to-Current

Converter/Transmitter

Check for Samples: XTR111

1

FEATURES

DESCRIPTION

The

XTR111

is

a

precision

voltage-to-current

2

•

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%

•

LOW OFFSET DRIFT: 1

μV/°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)

•

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.

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

© 2006–2011, 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.