|
|
PDF XTR104 Data sheet ( Hoja de datos )
| Número de pieza | XTR104 | |
| Descripción | 4-20mA Current Transmitter with BRIDGE EXCITATION AND LINEARIZATION | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de XTR104 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
|
No Preview Available !
® XTR104
4-20mA Current Transmitter with
BRIDGE EXCITATION AND LINEARIZATION
FEATURES
q LESS THAN ±1% TOTAL ADJUSTED
ERROR, –40°C TO +85°C
q BRIDGE EXCITATION AND LINEARIZATION
q WIDE SUPPLY RANGE: 9V to 40V
q LOW SPAN DRIFT: 50ppm/°C max
q HIGH PSR: 110dB min
q HIGH CMR: 80dB min
DESCRIPTION
The XTR104 is a monolithic 4-20mA, two-wire cur-
rent transmitter integrated circuit designed for bridge
input signals. It provides complete bridge excitation,
instrumentation amplifier, linearization, and current
output circuitry necessary for high impedance strain
gage sensors.
The instrumentation amplifier can be used over a wide
range of gain, accommodating a variety of input signals
and sensors. Total adjusted error of the complete current
transmitter, including the linearized bridge is less than
±1% over the full –40°C to +85°C temperature range.
This includes zero drift, span drift and non-linearity for
bridge outputs as low as 10mV. The XTR104 operates
on loop power supply voltages down to 9V.
Linearization circuitry consists of a second, fully inde-
pendent instrumentation amplifier that controls the bridge
excitation voltage. It provides second-order correction
to the transfer function, typically achieving a 20:1
improvement in nonlinearity, even with low cost trans-
ducers.
The XTR104 is available in 16-pin plastic DIP and
SOL-16 surface-mount packages specified for the
–40°C to +85°C temperature range.
APPLICATIONS
q INDUSTRIAL PROCESS CONTROL
q FACTORY AUTOMATION
q SCADA
q WEIGHTING SYSTEMS
q ACCELEROMETERS
BRIDGE NONLINEARITY CORRECTION
USING XTR104
2.0
Uncorrected
Bridge Output
1.5
1.0
0.5
0
–0.5
0mV
Corrected
5mV
Bridge Output
10mV
R LIN
+ 9V to 40V
VPS
RG XTR104
–
4-20 mA
VO
RL
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 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1992 Burr-Brown Corporation
PDS1-1146B
XTR104Printed in U.S.A. September, 1993
®
1 page  
TYPICAL PERFORMANCE CURVES (CONT)
TA = +25°C, +V = 24V, unless otherwise noted.
120
100
80
60
40
20
0
0.1
COMMON-MODE REJECTION
vs FREQUENCY (RTI)
G = 0.16A/V
(RG = 400Ω)
1 10 100 1k 10k 100k
Frequency (Hz)
140
120
100
80
60
40
20
0
0.1
POWER SUPPLY
REJECTION vs FREQUENCY (RTI)
G = 0.16A/V
(RG = 400Ω)
1 10 100 1k 10k 100k
Frequency (Hz)
1750
1500
1250
1000
750
500
250
0
0
LOOP RESISTANCE vs LOOP POWER SUPPLY
1550Ω
(V+) – 9V
R max = 20mA
Operating
Region
9V
10 20 30 40
Loop Power Supply Voltage, VPS (V)
50
INPUT CURRENT NOISE DENSITY vs FREQUENCY
10
OUTPUT CURRENT NOISE DENSITY vs FREQUENCY
10
RG = ∞
1
0.1
0.1 1 10 100 1k 10k 100k
Frequency (Hz)
INPUT VOLTAGE NOISE DENSITY vs FREQUENCY
1k
1
0.1
0.1
1
10 100 1k
Frequency (Hz)
10k 100k
100
10
0.1 1 10 100 1k 10k 100k
Frequency (Hz)
®
5 XTR104
5 Page 
1.37mA at 5V
1.65kΩ
350Ω
9.4kΩ
≈ 400µA
+
LT1049
–
90kΩ
1kΩ
1µF
1.65kΩ
Bridge Excitation
Voltage = 0.42V
approx. x10
Amplifier
FIGURE 8. 350Ω Bridge With X10 Preamplifier.
RLIN
1
3
12
V+IN
V+LIN
VR
8
9 10
V+
RG
25Ω
5
6
4
RG
XTR104
RG
V–LIN
B 13
E
IO 11
2 V–IN
7
1N4148
0.01µF
IO = 4-20mA
Bridge Sensor
– RB +
12
1
3
V+IN
V+LIN
VR
8
RLIN
9 10
V+
5 RG
RG XTR104 B 13
6
4
RG
V–LIN
2 V–IN
E
IO 11
7
1N4148
0.01µF
IO = 4-20mA
FIGURE 9. ±12V-Powered Transmitter/Receiver Loop.
+12V
1µF
16
10
3
11
12
15
RCV420
14
2 13
5
4
VO = 0 to 5V
1µF
–12V
Bridge
Sensor
–
RB +
12
1
3
V+IN
V+LIN
VR
8
5 RG
RG XTR104
6
4
RG
V–LIN
2 V–IN
RLIN
9 10
V+
B 13
E
IO 11
7
1N4148
0.01µF
IO = 4-20mA
FIGURE 10. Isolated Transmitter/Receiver Loop.
11
16
10
3
11
12
15
RCV420
14
2 13
5
4
+15V
1µF
0 Isolated Power
from PWS740
1µF
–15V
1
15
ISO122
2
16
9
7
8
10
V+
VO
0 – 5V
V–
XTR104
®
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet XTR104.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| XTR101 | Precision/ Low Drift 4-20mA TWO-WIRE TRANSMITTER | Burr-Brown Corporation |
| XTR101 | XTR101: Precision Low Drift 4-20mA Two-Wire Transmitter (Rev. A) |  Texas Instruments |
| XTR103 | 4-20mA Current Transmitter with RTD EXCITATION AND LINEARIZATION | Burr-Brown Corporation |
| XTR103 | 4-20mA Current Transmitter with RTD Excitation And Linearization | Texas Instruments |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |