XTR101 TRANSMITTER Datasheet

XTR101 Datasheet, PDF, Equivalent


Part Number

XTR101

Description

Precision/ Low Drift 4-20mA TWO-WIRE TRANSMITTER

Manufacture

Burr-Brown Corporation

Total Page 15 Pages
Datasheet
Download XTR101 Datasheet


XTR101
® XTR101
Precision, Low Drift
4-20mA TWO-WIRE TRANSMITTER
FEATURES
q INSTRUMENTATION AMPLIFIER INPUT
Low Offset Voltage, 30µV max
Low Voltage Drift, 0.75µV/°C max
Low Nonlinearity, 0.01% max
q TRUE TWO-WIRE OPERATION
Power and Signal on One Wire Pair
Current Mode Signal Transmission
High Noise Immunity
q DUAL MATCHED CURRENT SOURCES
q WIDE SUPPLY RANGE: 11.6V to 40V
q –40°C to +85°C SPECIFICATION RANGE
q SMALL 14-PIN DIP PACKAGE, CERAMIC
AND PLASTIC
DESCRIPTION
The XTR101 is a microcircuit, 4-20mA, two-wire
transmitter containing a high accuracy instrumenta-
tion amplifier (IA), a voltage-controlled output current
source, and dual-matched precision current reference.
This combination is ideally suited for remote signal
conditioning of a wide variety of transducers such as
thermocouples, RTDs, thermistors, and strain gauge
bridges. State-of-the-art design and laser-trimming,
wide temperature range operation and small size make
it very suitable for industrial process control applica-
tions. In addition, the optional external transistor al-
lows even higher precision.
The two-wire transmitter allows signal and power to
be supplied on a single wire-pair by modulating the
power supply current with the input signal source. The
transmitter is immune to voltage drops from long runs
and noise from motors, relays, actuators, switches,
transformers, and industrial equipment. It can be used
by OEMs producing transmitter modules or by data
acquisition system manufacturers.
APPLICATIONS
q INDUSTRIAL PROCESS CONTROL
Pressure Transmitters
Temperature Transmitters
Millivolt Transmitters
q RESISTANCE BRIDGE INPUTS
q THERMOCOUPLE INPUTS
q RTD INPUTS
q CURRENT SHUNT (mV) INPUTS
q PRECISION DUAL CURRENT SOURCES
q AUTOMATED MANUFACTURING
q POWER/PLANT ENERGY SYSTEM
MONITORING
IREF1
IREF2
Optional
External
e1
3–
10
+VCC Transistor
11
8
5
Span
6
XTR101
(1)
12
B
e2 4 +
9
(1)
13 E
1 2 14 7
Optional
Offset Null
IOUT
NOTE: (1) Pins 12 and 13 are used for optional BW control.
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/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1986 Burr-Brown Corporation
PDS-627G
Printed in U.S.A. October, 1993

XTR101
SPECIFICATIONS
ELECTRICAL
At TA = +25°C, +VCC = 24VDC, and RL = 100with external transistor connected, unless otherwise noted
XTR101AG
XTR101BG
XTR101AP
PARAMETER
CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX
OUTPUT AND LOAD CHARACTERISTICS
Current
Current Limit
Offset Current Error
vs Temperature
Full Scale Output Current Error
Power Supply Voltage
Load Resistance
SPAN
Output Current Equation
Span Equation
vs Temperature
Untrimmed Error(2)
Nonlinearity
Hysteresis
Dead Band
Linear Operating Region 4
Derated Performance 3.8
IOS, IO = 4mA
IOS /T
Full Scale = 20mA
VCC, Pins 7 and 8,
Compliance(1)
+11.6
At VCC = +24V, IO = 20mA
At VCC = +40V, IO = 20mA
RS in , e1 and e2 in V
RS in
Excluding TCR of RS
εSPAN
εNONLINEARITY
–5
28
±3.9
±10.5
±20
±30
–2.5
0
0
20
22
38
±10
±20
±40
±40
600
1400
±100
0
0.01
T TT T
T TT T
TT
31 T
±2.5 ±6
±8.5 ±19
±8 ±15
±10.5 ±20
±15 ±30
±30 ±60
T TT T
T 600
T 1400
iO = 4mA + [0.016+ (40/RS)] (e2 – e1)
S = [0.016+ (40/RS)]
TT
TT
TTTTTT
TT
TT
TT
INPUT CHARACTERISTICS
Impedance: Differential
Common -Mode
Voltage Range, Full Scale
Offset Voltage
vs Temperature
Power Supply Rejection
Bias Current
vs Temperature
Offset Current
vs Temperature
Common-Mode Rejection(4)
Common-Mode Range
0.4 || 3
10 || 3
e = (e2 – e1)(3)
VOS
VOS/T
VCC/PSRR = VOS Error
IB
IB/T
IOSI
IOSI/T
DC
0
110
90
±30
±0.75
125
60
0.30
10
0.1
100
1
±60
±1.5
150
1
±30
0.3
e1 and e2 with Respect
to Pin 7
4
6
T
T
T TT
±20 ±30
±0.35 ±0.75
TT
T
TT
TT
T ±20
TT
TT
T
T TT
T
T
T
T ±100
TT
122
TT
TT
TT
TT
T
T
CURRENT SOURCES
Magnitude
Accuracy
vs Temperature
vs VCC
vs Time
Compliance Voltage
Ratio Match
Accuracy
vs Tempeature
vs VCC
vs Time
Output Impedance
1 TT
VCC = 24V,
VPIN 8 – VPIN 10, 11 = 19V
R2 = 5k, Fig. 5
±0.06
±50
±3
±0.17
±80
±0.025 ±0.075
±30 ±50
T
±0.2 ±0.37
TT
T
±8 T T
With Respect to Pin 7
Tracking
0
VCC – 3.5 T
TT
T
(1 – IREF1/IREF2) X 100%
±0.014 ±0.06
±15
±0.009 ±0.04
10
±0.031 ±0.088
T
±10 T
T
±1
10 20
T
TT
T
T 15
TEMPERATURE RANGE
Specification
Operating
Storage
–40 +85 T
–55 +125 T
–55 +165 T
T –40
T –40
T –55
+85
+85
+125
XTR101AU
MIN TYP MAX UNITS
T T mA
T T mA
31 T
mA
±8.5 ±19
µA
T ppm, FS/°C
±30 ±60
µA
T T VDC
T
T
A/V
T T ppm/°C
TTT
%
T%
T%
T%
T G|| pF
T G|| pF
T TV
T ±100
µV
T T µV/°C
110 122
dB
TT
nA
T T nA/°C
TT
nA
T T nA/°C
TT
dB
T TV
T mA
±0.2 ±0.37
%
T T ppm/°C
T ppm/V
T ppm/month
T TV
±0.031 ±0.088
%
T ppm/°C
T ppm/V
T ppm/month
T 15
M
T T °C
–40 +85 °C
–55 +125 °C
T Same as XTR101AG.
NOTES: (1) See Typical Performance Curves. (2) Span error shown is untrimmed and may be adjusted to zero. (3) e1 and e2 are signals on the –In and +In terminals
with respect to the output, pin 7. While the maximum permissible e is 1V, it is primarily intended for much lower input signal levels, e.g., 10mV or 50mV full scale
for the XTR101A and XTR101B grades respectively. 2mV FS is also possible with the B grade, but accuracy will degrade due to possible errors in the low value
span resistance and very high amplification of offset, drift, and noise. (4) Offset voltage is trimmed with the application of a 5V common-mode voltage. Thus the
associated common-mode error is removed. See Application Information section.
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.
®
XTR101
2


Features ® XTR101 Precision, Low Drift 4-20mA TWO-WIRE TRANSMITTER FEATURES q INSTRUM ENTATION AMPLIFIER INPUT Low Offset Vol tage, 30µV max Low Voltage Drift, 0.75 µV/°C max Low Nonlinearity, 0.01% max q TRUE TWO-WIRE OPERATION Power and Si gnal on One Wire Pair Current Mode Sign al Transmission High Noise Immunity q D UAL MATCHED CURRENT SOURCES q WIDE SUPP LY RANGE: 11.6V to 40V q –40°C to +8 5°C SPECIFICATION RANGE q SMALL 14-PIN DIP PACKAGE, CERAMIC AND PLASTIC APPL ICATIONS q INDUSTRIAL PROCESS CONTROL P ressure Transmitters Temperature Transm itters Millivolt Transmitters q RESISTA NCE BRIDGE INPUTS q THERMOCOUPLE INPUTS q RTD INPUTS q CURRENT SHUNT (mV) INPU TS q PRECISION DUAL CURRENT SOURCES q A UTOMATED MANUFACTURING q POWER/PLANT EN ERGY SYSTEM MONITORING DESCRIPTION The XTR101 is a microcircuit, 4-20mA, two- wire transmitter containing a high accu racy instrumentation amplifier (IA), a voltage-controlled output current sourc e, and dual-matched precision current reference. This combination is id.
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