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Product details

Parameters

Vs (Min) (V) 7.5 Vs (Max) (V) 36 Offset voltage drift (+/-) (Max) (uV/degrees celsius) 1.5 Offset voltage (+/-) (Max) (uV) 25 open-in-new Find other 4-20mA signal conditioners

Package | Pins | Size

PDIP (N) 14 181 mm² 19.3 x 9.4 SOIC (D) 14 52 mm² 8.65 x 6 open-in-new Find other 4-20mA signal conditioners

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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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.

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XTR108 ACTIVE 4-20mA, Two-Wire Transmitter 'Smart' Programmable with Signal Conditioning This device offers a sub-regulator (5-V), dual programable current sources, autozeroed PGA, 6-channel mux, linearization circuitry, and SPI interface.

Technical documentation

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Type Title Date
* Datasheet XTR106: 4-20mA Current Transmitter with Bridge Excitation And Linearization datasheet (Rev. A) Jul. 21, 2003
Application notes 4Q 2011 Issue Analog Applications Journal Nov. 09, 2011
Application notes Analog linearization of resistance temperature detectors Nov. 09, 2011
Application notes 20mA to 0-20mA Converter & Current Summing Current-to-Current Converters Oct. 02, 2000

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
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Description

 

The DLP NIRscan is a complete evaluation module (EVM) to design a high performance, affordable near-infrared spectrometer.  This flexible tool contains everything a designer needs to start developing a DLP-based spectrometer right out of the box.  The EVM features the DLP 0.45 WXGA NIR (...)

Features

The DLP® NIRscan™ evaluation module includes the key features highlighted below. For mobile sensing, check out the DLP NIRscan Nano evaluation module. The table compares the key specifications of both evaluation modules.

  High Performance EVM MobileSensing EVM
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Design tools & simulation

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PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
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SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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CAD/CAE symbols

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PDIP (N) 14 View options
SOIC (D) 14 View options

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