XTR105UA
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Texas Instruments XTR105UA

Manufacturer No:
XTR105UA
Manufacturer:
Texas Instruments
Package:
Tube
Description:
IC CURRENT TRANSMITTER 14SOIC
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Payment:
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Product Introduction

Overview

The XTR105UA is a monolithic 4mA-to-20mA, 2-wire current transmitter produced by Texas Instruments. This device is designed to provide complete current excitation for platinum RTD temperature sensors and bridges, instrumentation amplifiers, and current output circuitry on a single integrated circuit. It features versatile linearization circuitry that achieves a 2nd-order correction to the RTD, significantly improving linearity. The XTR105UA operates on loop power-supply voltages ranging from 7.5V to 36V and is specified for the industrial temperature range of –40°C to +85°C.

Key Specifications

ParameterMinTypMaxUnit
Supply Voltage Range7.536V
Operating Temperature Range–40+85°C
Output Current Range420mA
Precision Current Sources800800µA
Offset Drift0.4µV/°C
Output Current Noise30nAPP
PSR (Power Supply Rejection)110dB
CMR (Common Mode Rejection)86dB
Package TypesDIP-14, SO-14

Key Features

  • Low unadjusted error
  • Two precision current sources: 800µA each
  • Linearization for RTD sensors
  • 2-wire or 3-wire RTD operation
  • Low offset drift: 0.4µV/°C
  • Low output current noise: 30nAPP
  • High PSR: 110dB minimum
  • High CMR: 86dB minimum
  • Wide supply range: 7.5V to 36V

Applications

  • Field transmitter and sensor
  • Factory automation
  • Industrial process control
  • SCADA remote data acquisition
  • Temperature and pressure transducers
  • Compatible with HART modem

Q & A

  1. What is the XTR105UA used for? The XTR105UA is used as a 4mA-to-20mA current transmitter for applications involving platinum RTD temperature sensors, instrumentation amplifiers, and current output circuitry.
  2. What is the operating temperature range of the XTR105UA? The operating temperature range is –40°C to +85°C.
  3. What are the precision current sources of the XTR105UA? The device has two precision current sources, each providing 800µA.
  4. What is the supply voltage range for the XTR105UA? The supply voltage range is from 7.5V to 36V.
  5. What types of packages are available for the XTR105UA? The XTR105UA is available in DIP-14 and SO-14 packages.
  6. What is the typical application of the XTR105UA in industrial settings? It is commonly used in industrial process control, factory automation, and SCADA remote data acquisition.
  7. Does the XTR105UA support HART modem compatibility? Yes, it is compatible with HART modems.
  8. What is the significance of linearization in the XTR105UA? The linearization circuitry provides a 2nd-order correction to the RTD, achieving a 40:1 improvement in linearity.
  9. How does the XTR105UA handle noise and drift? It features low output current noise (30nAPP) and low offset drift (0.4µV/°C).
  10. What are the key electrical characteristics of the XTR105UA? It includes high PSR (110dB) and high CMR (86dB), ensuring robust performance against power supply and common-mode noise.

Product Attributes

Type:Current Transmitter
Input Type:Differential
Output Type:Voltage
Current - Supply:20 mA
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:14-SOIC (0.154", 3.90mm Width)
Supplier Device Package:14-SOIC
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Similar Products

Part Number XTR105UA XTR115UA XTR106UA XTR105PA XTR105U
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active
Type Current Transmitter Current Transmitter Current Transmitter Current Transmitter Current Transmitter
Input Type Differential Voltage Differential Differential Differential
Output Type Voltage Voltage Voltage Voltage Voltage
Current - Supply 20 mA 20 mA 20 mA 20 mA 20 mA
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -55°C ~ 125°C -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount Through Hole Surface Mount
Package / Case 14-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width) 14-DIP (0.300", 7.62mm) 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package 14-SOIC 8-SOIC 14-SOIC 14-PDIP 14-SOIC

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