Name: XTR115UA
SKU: XTR115UA
Price: 1.52319 USD
Availability: InStock

XTR115

XTR116

4-20mA CURRENT LOOP TRANSMITTERS

FEATURES

● LOW QUIESCENT CURRENT: 200µA

● 5V REGULATOR FOR EXTERNAL CIRCUITS

● V

REF

FOR SENSOR EXCITATION:

XTR115: 2.5V

XTR116: 4.096V

● LOW SPAN ERROR: 0.05%

● LOW NONLINEARITY ERROR: 0.003%

● WIDE LOOP SUPPLY RANGE: 7.5V to 36V

● SO-8 PACKAGE

APPLICATIONS

● 2-WIRE, 4-20mA CURRENT LOOP

TRANSMITTER

● SMART TRANSMITTER

● INDUSTRIAL PROCESS CONTROL

● TEST SYSTEMS

● COMPATIBLE WITH HART MODEM

● CURRENT AMPLIFIER

● VOLTAGE-TO-CURRENT AMPLIFIER

DESCRIPTION

The XTR115 and XTR116 are precision current out-

put converters designed to transmit analog 4-to-20mA

signals over an industry standard current loop. They

provide accurate current scaling and output current

limit functions.

The on-chip voltage regulator (5V) can be used to

power external circuitry. A precision on-chip V

REF

(2.5V for XTR115 and 4.096V for XTR116) can be

used for offsetting or to excite transducers. A current

return pin (I

RET

) senses any current used in external

circuitry to assure an accurate control of the output

current.

The XTR115 is a fundamental building block of

smart sensors using 4-to-20mA current transmission.

The XTR115 and XTR116 are specified for opera-

tion over the extended industrial temperature range,

–40°C to +85°C.

XTR115

XTR116

–

RET

XTR115

XTR116

+5V

Regulator

25Ω

LIM

V+

2.475kΩ

100 V

Voltage

Reference

+5V

REG

REF

XTR115: 2.5V

XTR116: 4.096V

LOOP

I = 100

• I

SBOS124A – JANUARY 2000 – REVISED NOVEMBER 2003

www.ti.com

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

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.

All trademarks are the property of their respective owners.

XTR115, XTR116

SBOS124A

www.ti.com

✻ Specifications the same as XTR115U and XTR116U.

NOTES: (1) Does not include initial error or TCR of R

. (2) Voltage measured with respect to I

RET

pin.

SPECIFICATIONS

At T

= +25°C, V+

= 24V, R

= 20kΩ, and TIP29C external transistor, unless otherwise noted.

XTR115U XTR115UA

XTR116U XTR116UA

PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS

OUTPUT

Output Current Equation I

= I

• 100 ✻

Output Current, Linear Range 0.25 25 ✻✻mA

Over-Scale Limit I

LIM

32 ✻ mA

Under-Scale Limit I

MIN

REG

= 0, I

REF

= 0 0.2 0.25 ✻✻ mA

SPAN

Span (Current Gain) S 100 ✻ A/A

Error

(1)

= 250µA to 25mA ±0.05 ±0.2 ✻ ±0.4 %

vs Temperature T

= –40°C to +85°C ±3 ±20 ✻✻ ppm/°C

Nonlinearity I

= 250µA to 25mA ±0.003 ±0.01 ✻ ±0.02 %

INPUT

Offset Voltage (Op Amp) V

= 40µA ±100 ±250 ✻ ±500 µV

vs Temperature T

= –40°C to +85°C ±0.7 ±3 ✻ ±6 µV/°C

vs Supply Voltage, V+ V+ = 7.5V to 36V ±0.1 ±2 ✻✻ µV/V

Bias Current I

–35 ✻ nA

vs Temperature 150 ✻ pA/°C

Noise: 0.1Hz to 10Hz e

0.6 ✻ µVp-p

DYNAMIC RESPONSE

Small Signal Bandwidth C

LOOP

= 0, R

= 0 380 ✻ kHz

Slew Rate 3.2 ✻ mA/µs

REF

(2)

XTR115 2.5 ✻ V

XTR116 4.096 ✻ V

Voltage Accuracy I

REF

= 0 ±0.05 ±0.25 ✻ ±0.5 %

vs Temperature T

= –40°C to +85°C ±20 ±35 ✻ ±75 ppm/°C

vs Supply Voltage, V+ V+ = 7.5V to 36V ±1 ±10 ✻✻ ppm/V

vs Load I

REF

= 0mA to 2.5mA ±100 ✻ ppm/mA

Noise: 0.1Hz to 10Hz 10 ✻ µVp-p

Short-Circuit Current 16 ✻ mA

REG

(2)

Voltage 5 ✻ V

Voltage Accuracy I

REG

= 0 ±0.05 ±0.1 ✻✻ V

vs Temperature T

= –40°C to +85°C ±0.1 ✻ mV/°C

vs Supply Voltage, V+ V+ = 7.5V to 36V 1 ✻ mV/V

vs Output Current See Typical Curves

Short-Circuit Current 12 ✻ mA

POWER SUPPLY V+

Specified +24 ✻ V

Voltage Range +7.5 +36 ✻✻V

Quiescent Current 200 250 ✻✻ µA

Over Temperature, –40°C to +85°C 240 300 ✻✻ µA

TEMPERATURE RANGE

Specification –40 +85 ✻✻°C

Operating –55 +125 ✻✻°C

Storage –55 +125 ✻✻°C

Thermal Resistance

150 ✻ °C/W

XTR115, XTR116

SBOS124A

www.ti.com

Power Supply, V+ (referenced to I

pin) .......................................... 40V

Input Voltage (referenced to I

RET

pin) ........................................ 0V to V+

Output Current Limit ............................................................... Continuous

REG

, Short-Circuit .................................................................. Continuous

REF

, Short-Circuit .................................................................. Continuous

Operating Temperature ................................................ –55°C to +125°C

Storage Temperature Range ....................................... –55°C to +125°C

Lead Temperature (soldering, 10s).............................................. +300°C

Junction Temperature ................................................................... +165°C

NOTE: (1) Stresses above these ratings may cause permanent damage.

Exposure to absolute maximum conditions for extended periods may degrade

device reliability.

ABSOLUTE MAXIMUM RATINGS

(1)

Top View SO-8

PIN CONFIGURATION

PACKAGE/ORDERING INFORMATION

REF

RET

REG

V+

B (Base)

E (Emitter)

ELECTROSTATIC

DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Texas Instru-

ments 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 degrada-

tion 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.

For the most current package and ordering information, see

the Package Option Addendum located at the end of this

data sheet.

Part #	XTR115UA
Description	CURRENT LOOP TRANSMITTER 8SOIC - Rail/Tube
Category	IC
Availability	In Stock
Qty	3

XTR115UA

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