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XTR115UA

Part # XTR115UA
Description CURRENT LOOP TRANSMITTER 8SOIC - Rail/Tube
Category IC
Availability In Stock
Qty 3
Qty Price
1 + $1.45066
Manufacturer Available Qty
Burr-Brown Corporation
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

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
R
IN
I
IN
V
IN
+
I
RET
XTR115
XTR116
+5V
Regulator
R
2
25
R
LIM
E
B
V+
R
1
2.475k
I
O
=
100 V
IN
R
IN
A1
Voltage
Reference
+5V
V
REG
V
REF
2
3
8
1
5
4
7
6
XTR115: 2.5V
XTR116: 4.096V
R
L
V
LOOP
I = 100
• I
IN
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.
Copyright © 2000-2003, Texas Instruments Incorporated
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
2
SBOS124A
www.ti.com
Specifications the same as XTR115U and XTR116U.
NOTES: (1) Does not include initial error or TCR of R
IN
. (2) Voltage measured with respect to I
RET
pin.
SPECIFICATIONS
At T
A
= +25°C, V+
= 24V, R
IN
= 20k, 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
O
I
O
= I
IN
100
Output Current, Linear Range 0.25 25 ✻✻mA
Over-Scale Limit I
LIM
32 mA
Under-Scale Limit I
MIN
I
REG
= 0, I
REF
= 0 0.2 0.25 ✻✻ mA
SPAN
Span (Current Gain) S 100 A/A
Error
(1)
I
IN
= 250µA to 25mA ±0.05 ±0.2 ±0.4 %
vs Temperature T
A
= 40°C to +85°C ±3 ±20 ✻✻ ppm/°C
Nonlinearity I
IN
= 250µA to 25mA ±0.003 ±0.01 ±0.02 %
INPUT
Offset Voltage (Op Amp) V
OS
I
IN
= 40µA ±100 ±250 ±500 µV
vs Temperature T
A
= 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
B
35 nA
vs Temperature 150 pA/°C
Noise: 0.1Hz to 10Hz e
n
0.6 µVp-p
DYNAMIC RESPONSE
Small Signal Bandwidth C
LOOP
= 0, R
L
= 0 380 kHz
Slew Rate 3.2 mA/µs
V
REF
(2)
XTR115 2.5 V
XTR116 4.096 V
Voltage Accuracy I
REF
= 0 ±0.05 ±0.25 ±0.5 %
vs Temperature T
A
= 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
V
REG
(2)
Voltage 5 V
Voltage Accuracy I
REG
= 0 ±0.05 ±0.1 ✻✻ V
vs Temperature T
A
= 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
θ
JA
150 °C/W
XTR115, XTR116
3
SBOS124A
www.ti.com
Power Supply, V+ (referenced to I
O
pin) .......................................... 40V
Input Voltage (referenced to I
RET
pin) ........................................ 0V to V+
Output Current Limit ............................................................... Continuous
V
REG
, Short-Circuit .................................................................. Continuous
V
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
V
REF
I
IN
I
RET
I
O
V
REG
V+
B (Base)
E (Emitter)
1
2
3
4
8
7
6
5
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.
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