XTR111_07 BURR-BROWN [Burr-Brown Corporation], XTR111_07 Datasheet

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XTR111_07

Manufacturer Part Number
XTR111_07
Description
Precision Voltage-to-Current Converter/Transmitter
Manufacturer
BURR-BROWN [Burr-Brown Corporation]
Datasheet
FEATURES
D
D
D
D
D
D
D
D
D
APPLICATIONS
D
D
D
D
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.
All other trademarks are the property of their respective owners.
EASY-TO-DESIGN INPUT/OUTPUT RANGES:
0mA−20mA, 4mA−20mA, 5mA−25mA
AND VOLTAGE OUTPUTS
NONLINEARITY: 0.002%
LOW OFFSET DRIFT: 1µV/5C
ACCURACY: 0.015%
SINGLE-SUPPLY OPERATION
WIDE SUPPLY RANGE: 7V TO 44V
OUTPUT ERROR FLAG (EF)
OUTPUT DISABLE (OD)
ADJUSTABLE VOLTAGE REGULATOR:
3V TO 15V
UNIVERSAL VOLTAGE-CONTROLLED
CURRENT SOURCE
CURRENT OR VOLTAGE OUTPUT FOR
3-WIRE SENSOR SYSTEMS
PLC OUTPUT PROGRAMMABLE DRIVER
CURRENT-MODE SENSOR EXCITATION
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.
Precision Voltage-to-Current
Converter/Transmitter
www.ti.com
DESCRIPTION
The XTR111 is a precision voltage-to-current converter
designed for the standard 0mA−20mA or 4mA−20mA
analog signals, and can source up to 36mA. The ratio
between input voltage and output current is set by the
single resistor R
voltage output.
An external P-MOSFET transistor ensures high output
resistance and a broad compliance voltage range
extending from 2V below the supply voltage, V
voltages well below GND.
The adjustable 3V to 15V sub-regulator output provides
the supply voltage for additional circuitry.
The XTR111 is available in a DFN surface-mount package.
Regulator
Signal
Out
Input
5
4
6
REGF
REGS
VIN
3V
10
XR T 1
GND
SET
1 1
Copyright  2006, Texas Instruments Incorporated
. The circuit can also be modified for
XTR111
7
I−Mirror
SET
1
R
24V
I
SET
SET
VSP
SBOS375 − NOVEMBER 2006
I
I
OUT
OUT
OD
VG
EF
IS
= 10
= 10 • I
(± Load Ground)
9
8
2
3
G
( )
XTR111
R
V
SET
VIN
SET
Load
S
D
Output Disable
Output Failure
I
OUT
0mA to 20mA
4mA to 20mA
VSP
, to

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XTR111_07 Summary of contents

Page 1

Precision Voltage-to-Current Converter/Transmitter FEATURES D EASY-TO-DESIGN INPUT/OUTPUT RANGES: 0mA−20mA, 4mA−20mA, 5mA−25mA AND VOLTAGE OUTPUTS D NONLINEARITY: 0.002% D LOW OFFSET DRIFT: 1µV/5C D ACCURACY: 0.015% D SINGLE-SUPPLY OPERATION D WIDE SUPPLY RANGE 44V D OUTPUT ERROR FLAG (EF) ...

Page 2

XTR111 SBOS375 − NOVEMBER 2006 ABSOLUTE MAXIMUM RATINGS Power Supply Voltage VSP Voltage ...

Page 3

ELECTRICAL CHARACTERISTICS Boldface limits apply over the temperature range All specifications +25°C, VSP = +24V SET PARAMETER TRANSMITTER Transfer Function Specified Output Current Current Limit for Output Current SET (2, 3) Nonlinearity, ...

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XTR111 SBOS375 − NOVEMBER 2006 TYPICAL CHARACTERISTICS +25°C and V = +24V, unless otherwise noted. A VSP QUIESCENT CURRENT vs SUPPLY VOLTAGE 550 530 510 490 470 450 430 410 390 370 350 ...

Page 5

TYPICAL CHARACTERISTICS (continued +25°C and V = +24V, unless otherwise noted. A VSP NONLINEARITY DISTRIBUTION Nonlinearity (%) NONLINEARITY vs TEMPERATURE 0.03 0.02 0.1mA to 25mA 0.01 0 4mA to 20mA −0.01 −0.02 − 0.03 −75 −50 ...

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XTR111 SBOS375 − NOVEMBER 2006 TYPICAL CHARACTERISTICS (continued +25°C and V = +24V, unless otherwise noted. A VSP TYPICAL NONLINEARITY (2pt Calibration at 4mA and 20mA) 0.0020 0.0015 0.0010 0.0005 0.000 −0.0005 −0.0010 −0.0015 − 0.0020 4 ...

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TYPICAL CHARACTERISTICS (continued +25°C and V = +24V, unless otherwise noted. A VSP INPUT OFFSET VOLTAGE DISTRIBUTION Input Offset Voltage (mV) INPUT OFFSET VOLTAGE vs SUPPLY VOLTAGE 100 −20 − 40 ...

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XTR111 SBOS375 − NOVEMBER 2006 TYPICAL CHARACTERISTICS (continued +25°C and V = +24V, unless otherwise noted. A VSP REGULATOR VOLTAGE DISTRIBUTION I = 0.6mA LOAD Regulator Voltage (V) REGULATOR INPUT BIAS CURRENT DISTRIBUTION (Current into REGS Pin) ...

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TYPICAL CHARACTERISTICS (continued +25°C and V = +24V, unless otherwise noted. A VSP STEP RESPONSE 4V SET (Rising Edge Depends on C GATE Photo taken with C = 130pF GATE 5V/div 5V/div ...

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XTR111 SBOS375 − NOVEMBER 2006 APPLICATION INFORMATION The XTR111 is a voltage-controlled current source capa- ble of delivering currents from 0mA to 36mA. The primary intent of the device is to source the commonly-used indus- trial current ranges of 0mA−20mA ...

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EXPLANATION OF PIN FUNCTIONS VIN: This input is a conventional, noninverting, high- impedance input of the internal operational amplifier (OPA). The internal circuitry is protected by clamp diodes to supplies. An additional clamp approximately 18V protects internal circuitry. Place ...

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XTR111 SBOS375 − NOVEMBER 2006 EXTERNAL MOSFET The XTR 111 delivers the precise output current to the IS pin. The voltage at this pin is normally 1.4V below V must not fall more than 5.5V below V VSP This output ...

Page 13

DYNAMIC PERFORMANCE The rise time of the output current is dominated by the gate capacitance of the external FET. The accuracy of the current mirror relies on the dynamic matching of multiple individual current sources. Settling to full resolution ...

Page 14

XTR111 SBOS375 − NOVEMBER 2006 OUTPUT ERROR FLAG AND DISABLE INPUT The XTR111 has additional internal circuitry to detect an error in the output current. In case the controlled output current cannot flow due to a wire break, high load ...

Page 15

LEVEL SHIFT OF 0V INPUT AND TRANSCONDUCTANCE TRIM The XTR111 offers low offset voltage error at the input, which normally does not require cancellation. If the signal source cannot deliver single-supply circuit, an additional resistor from ...

Page 16

XTR111 SBOS375 − NOVEMBER 2006 The voltage at REGF is limited by the supply voltage. If the supply voltage drops close to the set voltage, the driver output saturates and follows the supply with a voltage drop of less than ...

Page 17

470nF 1 2kΩ 4 REF3040 R 2 4096mV 3k Ω Voltage Reference Ω 16− Bit Digital−to−Analog 6 Digital I/O Converter DAC8551 NOTE: Calculate R for R Parallel ...

Page 18

XTR111 SBOS375 − NOVEMBER 2006 5 3V Supply Output 20kΩ Input R 4 10kΩ GI NOTE: The input voltage contains the signal offset: for example 0. input signal. The input ...

Page 19

Q2 NPN R 3 1kΩ 470nF Figure 15. Voltage Regulator Current Boost Using a Standard NPN Transistor PACKAGE AND HEAT SINKING The dominant portion of power dissipation for the current output is in the external ...

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PACKAGING INFORMATION (1) Orderable Device Status XTR111AIDRCR ACTIVE XTR111AIDRCRG4 ACTIVE XTR111AIDRCT ACTIVE XTR111AIDRCTG4 ACTIVE (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be ...

Page 21

TAPE AND REEL INFORMATION PACKAGE MATERIALS INFORMATION Pack Materials-Page 1 17-May-2007 ...

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Device Package Pins XTR111AIDRCR DRC 10 XTR111AIDRCT DRC 10 TAPE AND REEL BOX INFORMATION Device Package XTR111AIDRCR DRC XTR111AIDRCT DRC PACKAGE MATERIALS INFORMATION Site Reel Reel A0 (mm) Diameter Width (mm) (mm) MLA 330 12 3.3 MLA 180 12 ...

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PACKAGE MATERIALS INFORMATION Pack Materials-Page 3 17-May-2007 ...

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Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the ...

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