two-wire current transmitters. They provide complete
current excitation for high impedance platinum RTD
temperature sensors and bridges, instrumentation am-
plifier, and current output circuitry on a single inte-
grated circuit. The XTR112 has two 250µA current
sources while the XTR114 has two 100µA sources for
RTD excitation.
Versatile linearization circuitry provides a 2nd-order
correction to the RTD, typically achieving a 40:1
improvement in linearity.
Instrumentation amplifier gain can be configured for a
wide range of temperature or pressure measurements.
Total unadjusted error of the complete current trans-
mitter is low enough to permit use without adjustment
in many applications. This includes zero output cur-
rent drift, span drift and nonlinearity. The XTR112
and XTR114 operate on loop power supply voltages
down to 7.5V.
Both are available in an SO-14 surface-mount pack-
age and are specified for the –40°C to +85°C indus-
trial temperature range.
Corrected
Nonlinearity
I
R
I
R
V
LIN
V
REG
+
7.5V to 36V
V
PS
4-20 mA
R
G
RTD
–
XTR112:
I
R
= 250µA
XTR114:
I
R
= 100µA
XTR112
XTR114
V
O
R
L
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
NOTES: (1) Describes accuracy of the 4mA low-scale offset current. Does not include input amplifier effects. Can be trimmed to zero. (2) Voltage measured with
respect to I
RET
pin. (3) Does not include initial error or TCR of gain-setting resistor, R
G
. (4) Increasing the full-scale input range improves nonlinearity. (5) Does not
include Zero Output initial error. (6) Current source output voltage with respect to I
Storage Temperature Range ....................................... –55°C to +125°C
Lead Temperature (soldering, 10s) .............................................. +300°C
Output Current Limit ............................................................... Continuous
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.
1
2
3
4
5
6
7
14 I
R2
13 V
IN
12 V
LIN
11 V
REG
10 V+
9
8
B (Base)
E (Emitter)
+
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
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.
NC = No Connection
PACKAGE/ORDERING INFORMATION
CURRENT
SOURCES
2 x 250µA
"
2 x 250µA
"
2 x 100µA
"
2 x 100µA
"
PACKAGE
DRAWING
NUMBER
(1)
235
"
235
"
235
"
235
"
SPECIFIED
TEMPERATURE
RANGE
–40°C to +85°C
"
–40°C to +85°C
"
–40°C to +85°C
"
–40°C to +85°C
"
ORDERING
NUMBER
(2)
XTR112U
XTR112U/2K5
XTR112UA
XTR112UA/2K5
XTR114U
XTR114U/2K5
XTR114UA
XTR114UA/2K5
TRANSPORT
MEDIA
Rails
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
PRODUCT
XTR112U
"
XTR112UA
"
XTR114U
"
XTR114UA
"
PACKAGE
SO-14 Surface Mount
"
SO-14 Surface Mount
"
SO-14 Surface Mount
"
SO-14 Surface Mount
"
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/) are
available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “XTR112UA/2K5” will get a single
2500-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use
of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits
described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
?This is the best of times, this is the worst of times. -- A Tale of Two Cities The door of opportunity in this era is open to everyone, but the competition for opportunities is more intense than ever...
The workflow is generally divided into three stages. Stage 1: Implement functions directly in C language as needed. In actual DSP applications, many algorithms are very complex. Although they are writ...
The problem of "fragmentation" of Internet of Things (IoT) products not only causes headaches for consumers and developers, but also hinders the further development of home smart hardware products. At...
When I use evc to debug and run the program, I must connect the development board (st2410) and the PC with a network cable and a USB cable. This occupies my only network card interface, and the PC can...
[i=s]This post was last edited by Xin Xin on 2016-6-9 00:58[/i] As an irresponsible moderator, I haven't cleaned up the forum for a long time. I cleaned up a bit in the evening. In addition to maintai...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
This paper establishes a fuel cell engine test platform based on the NI integrated hardware and software environment. This platform can realize the test and control of fuel cell engines and their a...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
Industrial Control Electronics
京公网安备 11010802033920号
EEWORLD
