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XTR105U +BOM

4-20mA Current Transmitter with Sensor Excitation and Linearization

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

XTR105U
Datasheet:

XTR105U Datasheet (PDF)
Programmable:

Not Verified
Type:

Current Transmitter
Input Type:

Differential
Output Type:

Voltage
EDA/CAD Models:

Request Free CAD Models for XTR105U

Email: [email protected]

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Tel: +852 95804164

XTR105U General Description

The XTR105 is a monolithic 4-20mA, 2-wire current transmitter with two precision current sources. It provides complete current excitation for platinum RTD temperature sensors and bridges, instrumentation amplifiers, and current output circuitry on a single integrated circuit.

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 transmitter is low enough to permit use without adjustment in many applications. This includes zero output current drift, span drift, and nonlinearity. The XTR105 operates on loop power-supply voltages down to 7.5V.

The XTR105 is available in DIP-14 and SO-14 surface-mount packages and is specified for the 40°C to +85°C industrial temperature range.

Key Features

LOW UNADJUSTED ERROR
TWO PRECISION CURRENT SOURCES: 800 µA each
LINEARIZATION
2-OR 3-WIRE RTD OPERATION
LOW OFFSET DRIFT: 0.4 µV/°C
LOW OUTPUT CURRENT NOISE: 30NA_PP
HIGH PSR: 110dB minimum
HIGH CMR: 86dB minimum
WIDE SUPPLY RANGE: 7.5V to 36V
DIP-14 AND SO-14 PACKAGES
APPLICATIONS
- INDUSTRIAL PROCESS CONTROL
- FACTORY AUTOMATION
- SCADA REMOTE DATA ACQUISITION
- REMOTE TEMPERATURE AND PRESSURE TRANSDUCERS

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Specifications

Category	Integrated Circuits (ICs)InterfaceSensor and Detector Interfaces	Series	-
Programmable	Not Verified	Type	Current Transmitter
Input Type	Differential	Output Type	Voltage
Current - Supply	20 mA	Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount	Base Product Number	XTR105
Product Category	Sensor Interface	Supply Voltage - Max	36 V
Supply Voltage - Min	7.5 V	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C	Mounting Style	SMD/SMT
Height	1.58 mm	Ib - Input Bias Current	25 nA
Length	8.65 mm	Moisture Sensitive	Yes
Product Type	Sensor Interface	Factory Pack Quantity	50
Subcategory	Interface ICs	Width	3.91 mm
Unit Weight	0.004564 oz