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類比電流感測放大器

INA271-HT

現行

具有線路濾波器功能的高溫、-16 至 80V、分段電流感測放大器

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產品規格表

INA271-HT

現行
產品規格表 立即訂購

產品詳細資料

Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -16 Input offset (±) (max) (µV) 10000 Input offset drift (±) (typ) (µV/°C) 42 Features Low-side Capable Rating High Temp Voltage gain (V/V) 20 CMRR (min) (dB) 100 Bandwidth (kHz) 130 Iq (max) (mA) 0.95 Number of channels 1 Comparators (#) 0 Gain error (%) 2 Gain error drift (±) (max) (ppm/°C) 300 Slew rate (V/µs) 1 Operating temperature range (°C) -55 to 210
Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -16 Input offset (±) (max) (µV) 10000 Input offset drift (±) (typ) (µV/°C) 42 Features Low-side Capable Rating High Temp Voltage gain (V/V) 20 CMRR (min) (dB) 100 Bandwidth (kHz) 130 Iq (max) (mA) 0.95 Number of channels 1 Comparators (#) 0 Gain error (%) 2 Gain error drift (±) (max) (ppm/°C) 300 Slew rate (V/µs) 1 Operating temperature range (°C) -55 to 210
CFP (HKJ) 8 38.985 mm² (— mm × — mm) DIESALE (KGD) — See data sheet CFP (HKQ) 8 38.985 mm² (— mm × — mm)
  • Wide Common-Mode Range: –16V to +80V
  • CMRR: 78dB
  • Accuracy:
    ±10mV Offset (max)
    ±7.5% Gain Error (max)
    100µV/°C Offset Drift (max)
  • Bandwidth: Up to 130kHz
  • Transfer Function: 20V/V
  • Quiescent Current: 1600µA (max)
  • Power Supply: +2.7V to +18V
  • Provision for Filtering
  • APPLICATIONS
    • Down-Hole Drilling
    • High Temperature Environments
  • Supports Extreme Temperature Applications
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Extreme (–55°C/210°C)
      Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Texas Instruments high temperature products utilize
      highly optimized silicon (die) solutions with design
      and process enhancements to maximize performance over
      extended temperatures.

(1) Custom temperature ranges

  • Wide Common-Mode Range: –16V to +80V
  • CMRR: 78dB
  • Accuracy:
    ±10mV Offset (max)
    ±7.5% Gain Error (max)
    100µV/°C Offset Drift (max)
  • Bandwidth: Up to 130kHz
  • Transfer Function: 20V/V
  • Quiescent Current: 1600µA (max)
  • Power Supply: +2.7V to +18V
  • Provision for Filtering
  • APPLICATIONS
    • Down-Hole Drilling
    • High Temperature Environments
  • Supports Extreme Temperature Applications
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Extreme (–55°C/210°C)
      Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Texas Instruments high temperature products utilize
      highly optimized silicon (die) solutions with design
      and process enhancements to maximize performance over
      extended temperatures.

(1) Custom temperature ranges

The INA271 is a current-shunt monitor with voltage output and can sense drops across current shunts at common-mode voltages from –16V to +80V, independent of the supply voltage. The INA271 pinouts readily enable filtering.

The INA271 is available with a 20V/V output voltage scale. The 130kHz bandwidth simplifies use in current-control loops.

The INA271 operates from a single +2.7V to +18V supply, drawing a maximum of 1600µA of supply current. This device is specified over the extended operating temperature range of –55°C to +210°C.

The INA271 is a current-shunt monitor with voltage output and can sense drops across current shunts at common-mode voltages from –16V to +80V, independent of the supply voltage. The INA271 pinouts readily enable filtering.

The INA271 is available with a 20V/V output voltage scale. The 130kHz bandwidth simplifies use in current-control loops.

The INA271 operates from a single +2.7V to +18V supply, drawing a maximum of 1600µA of supply current. This device is specified over the extended operating temperature range of –55°C to +210°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 Voltage Output, Unidirectional Measurement Current-Shunt Monitor datasheet (Rev. D) 2013/8/27
* 輻射及可靠性報告 INA271SHKQ Reliability Report 2012/5/7
* 輻射及可靠性報告 INA271SHKJ Reliability Report 2012/5/7
應用說明 Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A) PDF | HTML 2026/4/27

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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計算工具

CS-AMPLIFIER-ERROR-TOOL — Current Sense Amplifier Comparison and Error Tool

此 Excel 計算機提供兩個與五個標準電流感測放大器的比較，並提供包含各裝置基本參數的圖表。此計算機也會採用使用者的系統條件輸入，例如共模電壓、供應電壓、分流電阻器值與公差，然後在可調整電流範圍中繪製錯誤曲線。此外，計算機會根據計算的全刻度輸入電壓除以最大量測電流，輸出最大分流值 (mΩ)。
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參考設計

TIDA-00302 — 具瞬態穩定性的電流分流監控器參考設計

此高壓側電流分流監控器可用於測量電流通過电流感测電阻器時在电阻器上所形成的電壓。

此外，實作外部保護電路以提供突波和快速暫態保護，並針對 IEC61000-4-4 和 IEC61000-4-5 展示不同的抗擾度等級。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
CFP (HKJ) 8 Ultra Librarian
DIESALE (KGD) — Ultra Librarian
CFP (HKQ) 8 Ultra Librarian
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