XTR105

現行

具有感測器激磁和線性化的 4-20mA 電流發送器

產品詳細資料

Vs (min) (V) 7.5 Vs (max) (V) 36 Offset voltage drift (±) (max) (µV/°C) 3 Offset voltage (±) (max) (mV) 0.025 Product type 2-wire RTD conditioner Operating temperature range (°C) -40 to 85 Rating Catalog
Vs (min) (V) 7.5 Vs (max) (V) 36 Offset voltage drift (±) (max) (µV/°C) 3 Offset voltage (±) (max) (mV) 0.025 Product type 2-wire RTD conditioner Operating temperature range (°C) -40 to 85 Rating Catalog
SOIC (D) 14 51.9 mm² (8.65 mm × 6 mm) PDIP (N) 14 181.42 mm² (19.3 mm × 9.4 mm)
  • Low unadjusted error
  • Two precision current sources: 800µA each
  • Linearization
  • 2-wire or 3-wire RTD operation
  • Low offset drift: 0.4µV/°C
  • Low output current noise: 30nAPP
  • High PSRR: 110dB minimum
  • High CMRR: 86dB minimum
  • Wide supply range: 7.5V to 36V
  • Packages: DIP-14 and SOIC-14
  • Low unadjusted error
  • Two precision current sources: 800µA each
  • Linearization
  • 2-wire or 3-wire RTD operation
  • Low offset drift: 0.4µV/°C
  • Low output current noise: 30nAPP
  • High PSRR: 110dB minimum
  • High CMRR: 86dB minimum
  • Wide supply range: 7.5V to 36V
  • Packages: DIP-14 and SOIC-14

The XTR105 is a monolithic 4mA to 20mA, 2-wire current transmitter with two precision current sources. This device 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 SOIC-14 surface-mount packages and is specified for the industrial temperature range of –40°C to +85°C.

The XTR105 is a monolithic 4mA to 20mA, 2-wire current transmitter with two precision current sources. This device 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 SOIC-14 surface-mount packages and is specified for the industrial temperature range of –40°C to +85°C.

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 XTR105 4-20mA Current Transmitter With Sensor Excitation and Linearization datasheet (Rev. D) PDF | HTML 2025/12/12
類比設計期刊 4Q 2011 Issue Analog Applications Journal 2011/11/9
類比設計期刊 Analog linearization of resistance temperature detectors 2011/11/9
應用說明 20mA to 0-20mA Converter & Current Summing Current-to-Current Converters 2000/10/2
應用說明 FOUR-WIRE RTD CURRENT-LOOP TRANSMITTER 2000/9/27
應用說明 IC Building Blocks Form Complete Isolated 4-20mA Current-Loop 2000/9/27

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計算工具

XTR-ERROR-CALC — Current Transmitter Error Calculator

此試算表計算電流發射器 (XTR) 裝置和外部零組件的錯誤。

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參考設計

TIPD161 — 類比線性化 3 線 PT100 RTD 至 2 線 4-20mA 電流迴路發送器參考設計

此設計具備單晶片解決方案,可透過業界標準 2 線 4-20mA 電流迴路,線性化與傳輸 3 線 PT100 RTD。  此設計的配置適用於 -200°C 至 800°C 溫度範圍,但如參考設計指南的「運作原理」一節中所述,調整元件值即可達到其他溫度範圍。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 14 Ultra Librarian
PDIP (N) 14 Ultra Librarian

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