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XTR106P +BOM

4-20-mA current transmitter with bridge excitation (2.5-V or 5-V reference) and linearization

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

XTR106P
Datasheet:

XTR106P Datasheet (PDF)
Vs (min) (V):

7.5
Vs (max) (V):

36
Offset Voltage Drift (±) (max) (V/°C):

0.0000015
Offset Voltage (±) (max) (V):

0.000025
EDA/CAD Models:

Request Free CAD Models for XTR106P

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XTR106P General Description

The XTR106 is a low cost, monolithic 4-20mA, two-wire current transmitter designed for bridge sensors. It provides complete bridge excitation (2.5V or 5V reference), instrumentation amplifier, sensor linearization, and current output circuitry. Current for powering additional external input circuitry is available from the VREG pin.

The instrumentation amplifier can be used over a wide range of gain, accommodating a variety of input signal types and sensors. Total unadjusted error of the complete current transmitter, including the linearized bridge, is low enough to permit use without adjustment in many applications. The XTR106 operates on loop power supply voltages down to 7.5V.

Linearization circuitry provides second-order correction to the transfer function by controlling bridge excitation voltage. It provides up to a 20:1 improvement in nonlinearity, even with low cost transducers.

&The XTR106 is available in 14-pin plastic DIP and SO-14 surface-mount packages and is specified for the 40°C to +85°C temperature range. Operation is from 55°C to +125°C.

Key Features

LOW TOTAL UNADJUSTED ERROR
2.5V, 5V BRIDGE EXCITATION REFERENCE
5.1V REGULATOR OUTPUT
LOW SPAN DRIFT: ±25ppm/°C max
LOW OFFSET DRIFT: 0.25µV/°C
HIGH PSR: 110dB min
HIGH CMR: 86dB min
WIDE SUPPLY RANGE: 7.5V to 36V
14-PIN DIP AND SO-14 SURFACE-MOUNT
APPLICATIONS
- PRESSURE BRIDGE TRANSMITTERS
- STRAIN GAGE TRANSMITTERS
- TEMPERATURE BRIDGE TRANSMITTERS
- INDUSTRIAL PROCESS CONTROL
- SCADA REMOTE DATA ACQUISITION
- REMOTE TRANSDUCERS
- WEIGHING SYSTEMS
- ACCELEROMETERS

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Specifications

Vs (min) (V)	7.5	Vs (max) (V)	36
Offset voltage drift (±) (max) (V/°C)	0.0000015	Offset voltage (±) (max) (V)	0.000025
Product type	2-wire bridge conditioner	Operating temperature range (°C)	-40 to 85
Rating	Catalog	feature-sensor-type	Current Transmitter
feature-adc-resolution-bit		feature-interface-type	2-Wire
feature-process-technology		feature-input-type	Differential
feature-output-type	Analog	feature-minimum-operating-supply-voltage-v	7.5
feature-maximum-operating-supply-voltage-v	36	feature-typical-operating-supply-voltage-v	24
feature-packaging	Tube	feature-rad-hard
feature-pin-count	14	feature-cecc-qualified	No
feature-esd-protection	Yes	feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-auto-motive	No	feature-p-pap	No
feature-eccn-code	EAR99	feature-svhc	No
feature-svhc-exceeds-threshold	No