INA193

現行

-16 至 80V、500kHz 電流感測放大器

現在提供此產品的更新版本

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INA281 現行 -4-V 至 110-V、1.3-MHz、高精密電流感測放大器 This product offers improved accuracy, higher bandwidth and an extended common mode voltage range.

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) 2000 Input offset drift (±) (typ) (µV/°C) 2.5 Features Low-side Capable Rating Catalog Voltage gain (V/V) 20 CMRR (min) (dB) 100 Bandwidth (kHz) 500 Iq (max) (mA) 0.95 Number of channels 1 Comparators (#) 0 Gain error (%) 1 Gain error drift (±) (max) (ppm/°C) 100 Slew rate (V/µs) 1 Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -16 Input offset (±) (max) (µV) 2000 Input offset drift (±) (typ) (µV/°C) 2.5 Features Low-side Capable Rating Catalog Voltage gain (V/V) 20 CMRR (min) (dB) 100 Bandwidth (kHz) 500 Iq (max) (mA) 0.95 Number of channels 1 Comparators (#) 0 Gain error (%) 1 Gain error drift (±) (max) (ppm/°C) 100 Slew rate (V/µs) 1 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Wide Common-Mode Voltage:
    –16 V to +80 V
  • Low Error: 3.0% Over Temp (maximum)
  • Bandwidth: Up to 500 kHz
  • Three Transfer Functions Available: 20 V/V,
    50 V/V, and 100 V/V
  • Quiescent Current: 900 µA (maximum)
  • Complete Current Sense Solution
  • APPLICATIONS
    • Welding Equipment
    • Notebook Computers
    • Cell Phones
    • Telecom Equipment
    • Automotive
    • Power Management
    • Battery Chargers

All other trademarks are the property of their respective owners

  • Wide Common-Mode Voltage:
    –16 V to +80 V
  • Low Error: 3.0% Over Temp (maximum)
  • Bandwidth: Up to 500 kHz
  • Three Transfer Functions Available: 20 V/V,
    50 V/V, and 100 V/V
  • Quiescent Current: 900 µA (maximum)
  • Complete Current Sense Solution
  • APPLICATIONS
    • Welding Equipment
    • Notebook Computers
    • Cell Phones
    • Telecom Equipment
    • Automotive
    • Power Management
    • Battery Chargers

All other trademarks are the property of their respective owners

The INA193–INA198 family of current shunt monitors with voltage output can sense drops across shunts at common-mode voltages from –16 V to +80 V, independent of the INA19x supply voltage. They are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V. The 500 kHz bandwidth simplifies use in current control loops. The INA193–INA195 devices provide identical functions but alternative pin configurations to the INA196–INA198 devices, respectively.

The INA193–INA198 devices operate from a single 2.7-V to 18-V supply, drawing a maximum of 900 µA of supply current. They are specified over the extended operating temperature range (–40°C to +125°C), and are offered in a space-saving SOT-23 package.

The INA193–INA198 family of current shunt monitors with voltage output can sense drops across shunts at common-mode voltages from –16 V to +80 V, independent of the INA19x supply voltage. They are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V. The 500 kHz bandwidth simplifies use in current control loops. The INA193–INA195 devices provide identical functions but alternative pin configurations to the INA196–INA198 devices, respectively.

The INA193–INA198 devices operate from a single 2.7-V to 18-V supply, drawing a maximum of 900 µA of supply current. They are specified over the extended operating temperature range (–40°C to +125°C), and are offered in a space-saving SOT-23 package.

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技術文件

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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 INA19x Current Shunt Monitor −16 V to +80 V Common-Mode Range datasheet (Rev. G) PDF | HTML 2015/1/3
應用說明 Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A) PDF | HTML 2026/4/27
電子書 An Engineer's Guide to Current Sensing (Rev. B) 2022/4/12
選擇指南 Current Sense Amplifiers (Rev. E) 2021/9/20
技術文章 How to get started with current sense amplifiers – part 1 PDF | HTML 2015/5/19
類比設計期刊 Q4 2008 Issue Analog Applications Journal 2008/10/22
類比設計期刊 Low-cost current-shunt monitor IC revives moving-coil meter design 2006/4/18

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。

支援產品和硬體
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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設計工具

CIRCUIT060030 — 具有暫態保護的高壓側、雙向電流感測電路

這款高壓側雙向電流感測解決方案可針對 36-V 電壓匯流排精確測量 –40 A 至 40 A 範圍內的電流。線性電壓輸出為 100 mV 至 4.90 V。此解決方案也設計為能夠承受 IEC61000-4-4 等級 4 EFT 應力 (Voc = 2 kV;Isc = 40 A;8/20 µs)。
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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。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 5 Ultra Librarian

訂購與品質

支援與培訓

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