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參數(shù)資料
| 型號： | XTR112U/2K5 |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC 4-20MA I-TRANSMITTER 14-SOIC |
| 標準包裝： | 2,500 |
| 類型： | 電流發(fā)送器 |
| 輸入類型： | 電壓 |
| 輸出類型： | 電壓 |
| 接口： | 2 線 |
| 電流 - 電源： | 20mA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 14-SOIC |
| 包裝： | 帶卷 (TR) |
1
XTR112, XTR114
RTD
XTR112
XTR114
–
4-20 mA
V
PS
V
O
R
L
R
G
V
LIN
V
REG
+
7.5V to 36V
I
R
I
R
XTR112: I
R = 250A
XTR114: I
R = 100A
XTR112
XTR114
4-20mA CURRENT TRANSMITTERS
with Sensor Excitation and Linearization
FEATURES
q LOW UNADJUSTED ERROR
q PRECISION CURRENT SOURCES
XTR112: Two 250
A
XTR114: Two 100
A
q RTD OR BRIDGE EXCITATION
q LINEARIZATION
q TWO OR THREE-WIRE RTD OPERATION
q LOW OFFSET DRIFT: 0.4
V/°C
q LOW OUTPUT CURRENT NOISE: 30nAp-p
q HIGH PSR: 110dB min
q HIGH CMR: 86dB min
q WIDE SUPPLY RANGE: 7.5V TO 36V
q SO-14 SOIC PACKAGE
APPLICATIONS
q INDUSTRIAL PROCESS CONTROL
q FACTORY AUTOMATION
q SCADA REMOTE DATA ACQUISITION
q REMOTE TEMPERATURE AND PRESSURE
TRANSDUCERS
DESCRIPTION
The XTR112 and XTR114 are monolithic 4-20mA,
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 250
A current
sources while the XTR114 has two 100
A 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.
1998 Burr-Brown Corporation
PDS-1473A
Printed in U.S.A. December, 1998
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
Twx: 910-952-1111 Internet: http://www.burr-brown.com/ Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
–200
°C
Pt1000 NONLINEARITY CORRECTION
USING XTR112 and XTR114
Process Temperature (
°C)
+850
°C
5
4
3
2
1
0
–1
Uncorrected
RTD Nonlinearity
Corrected
Nonlinearity
(%)
XTR112
XTR114
SBOS101
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| XTR112UA/2K5E4 | 功能描述:電流靈敏放大器 4-20mA Crnt Trnsmtr w/Sensor Exc & Lin RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| XTR112UAE4 | 功能描述:電流靈敏放大器 4-20mA Crnt Trnsmtr w/Sensor Exc & Lin RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
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