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隔離式放大器

AMC3301

現行

具有整合式 DC/DC 的 ±250-mV 輸入、精密電流感測強化型隔離放大器

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產品規格表

AMC3301

現行
產品規格表 立即訂購

產品詳細資料

Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.25 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 4250 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6000 CMTI (min) (kV/µs) 85 Creepage (min) (mm) 8 Clearance (min) (mm) 8 Input offset (±) (max) (V) 0.00015 Input offset drift (±) (typ) (µV/°C) 0.15 Rating Catalog Operating temperature range (°C) -40 to 125
Device type Current sensing Output type Differential Peak-to-peak input voltage range (V) 0.25 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 4250 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6000 CMTI (min) (kV/µs) 85 Creepage (min) (mm) 8 Clearance (min) (mm) 8 Input offset (±) (max) (V) 0.00015 Input offset drift (±) (typ) (µV/°C) 0.15 Rating Catalog Operating temperature range (°C) -40 to 125
SO-MOD (DWE) 16 106.09 mm² (10.3 mm × 10.3 mm)
  • 3.3V or 5V single supply with integrated DC/DC converter
  • ±250mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • Offset voltage: ±150µV (max)
    • Offset drift: ±1µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain error drift: ±40ppm/°C (max)
    • Nonlinearity: ±0.04% (max)
  • High CMTI: 85kV/µs (min)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 4250VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C
  • 3.3V or 5V single supply with integrated DC/DC converter
  • ±250mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • Offset voltage: ±150µV (max)
    • Offset drift: ±1µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain error drift: ±40ppm/°C (max)
    • Nonlinearity: ±0.04% (max)
  • High CMTI: 85kV/µs (min)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 4250VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C

The AMC3301 is a precision, isolated amplifier optimized for shunt-based current measurements. The fully integrated, isolated DC/DC converter allows single-supply operation from the low-side of the device, which makes the device a unique solution for space-constrained applications. The reinforced capacitive isolation barrier is certified according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 and supports a working voltage of up to 1.2kVRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.

The input of the AMC3301 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current measurements over the extended industrial temperature range from –40°C to +125°C.

The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3301 simplify system-level design and diagnostics.

The AMC3301 is a precision, isolated amplifier optimized for shunt-based current measurements. The fully integrated, isolated DC/DC converter allows single-supply operation from the low-side of the device, which makes the device a unique solution for space-constrained applications. The reinforced capacitive isolation barrier is certified according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 and supports a working voltage of up to 1.2kVRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.

The input of the AMC3301 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current measurements over the extended industrial temperature range from –40°C to +125°C.

The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3301 simplify system-level design and diagnostics.
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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 AMC3301 Precision, ±250mV Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet (Rev. C) PDF | HTML 2025/5/14
證書 VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 2026/7/15
白皮書 以可靠且經濟實惠的隔離技術解決高 電壓設計挑戰 PDF | HTML PDF | HTML 2026/5/28
應用說明 Introduction to HVDC Architecture and Solutions for Control and Protection (Rev. C) PDF | HTML 2026/5/19
應用說明 AMC High Side Power Supply Options PDF | HTML 2025/10/15
證書 CQC Certificate for AMC33xx 2025/2/26
白皮書 Comparing Isolated Amplifiers and Isolated Modulators (Rev. B) PDF | HTML 2024/6/4
電子書 An Engineer's Guide to Isolated Signal Chain Solutions PDF | HTML 2024/5/23
Application brief Utilizing AMC3311 to Power AMC23C11 for Isolated Sensing and Fault Detection PDF | HTML 2023/11/9
Application brief Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC (Rev. B) PDF | HTML 2023/6/2
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 2023/5/4
白皮書 Best in Class Radiated Emissions EMI Performance with Isolated Amplifiers (Rev. A) PDF | HTML 2023/3/15
證書 UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) 2023/1/23
應用說明 Best Practices to Attenuate AMC3301 Family Radiated Emissions EMI (Rev. A) PDF | HTML 2022/9/22
Application brief Achieving High-Performance Isolated Current and Voltage Sensing in Server PSUs PDF | HTML 2022/7/21
證書 AMC3301EVM EU Declaration of Conformity (DoC) (Rev. B) 2022/6/29
Circuit design Isolated Current-Sensing Circuit W/ ±250-mV Input Range & Single-Ended Output PDF | HTML 2022/6/27
應用說明 Isolated Voltage-Measurement Circuit With ±250-mV Input and Differential Output (Rev. A) 2021/9/9
技術文章 Simplify your isolated current and voltage sensing designs with single-supply isol PDF | HTML 2020/10/26
Circuit design Isolated current-measurement circuit with ±250-mV input and differential output 2020/7/23

設計與開發

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開發板

AMC-AMP-50A-EVM — 適用於 ±50A AMCxx 放大器的評估模組

AMC-AMP-50A-EVM 是一款隔離式電流感測評估模組 (EVM)，專為 ±50A 分流架構電流感測設計。此 EVM 可讓使用者透過外部分流電阻器感測高達 ±50A 峰值電流，同時透過 AMC3302 的隔離層測量隔離輸出。AMC3302 是一款針對分流架構電流量測最佳化的精密隔離式放大器，並與 Isabellenhütte BVN-BVN- M R001 分流電阻器配對。此 EVM 透過拼接提供在大電流下促進散熱，並可在 ±1% (典型) 準確度內運作。
使用指南: PDF | HTML
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開發板

AMC3301EVM — 具有整合式 DC/DC 轉換器的 AMC3301 精密度強化型隔離式調變器評估模組

AMC3301 評估模組 (EVM) 是用於評估 AMC3301 裝置的平台，此平台是具備整合式 DC/DC 轉換器的精密度隔離式放大器，可由轉換器供電給放大器高壓側。AMC3301 是一款 7-kV 強化型隔離式放大器，主要設計用於電流分流測量應用。

使用指南中包含完整的電路描述、電路圖和物料清單 (BOM)。

使用指南: PDF | HTML
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模擬型號

AMC3301 PSpice Model

SBAM474.ZIP (13 KB) - PSpice 模型
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模擬型號

AMC3301 TINA-TI Reference Design (Rev. B)

SBAM440B (151 KB) - TINA-TI 參考設計
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計算工具

SBAR013 — Isolated Amplifier Voltage Sensing Excel Calculator

This calculator provides estimates of the errors associated with using isolation amplifier devices in a voltage sensing configuration.
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計算工具

SBAR020 — Isolated Amplifier Current Sensing Excel Calculator

This calculator provides estimates of the errors associated with using isolation amplifier devices in a current sensing configuration.
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參考設計

TIDA-010065 — 基於高效、低排放、隔離式 DC/DC 轉換器的類比輸入模組參考設計

此參考設計為一簡化架構，可產生隔離式電源供應，適用於測量隔離電壓與電流的隔離式放大器。具 5-V 輸入之強化隔離操作的完全整合式 DC/DC 轉換器，並具備可設定 5-V 或 5.4-V 輸出 (適用於低壓降穩壓器 (LDO) 的空餘空間) 可產生隔離電源。介接至 ±50-mV 輸入範圍隔離放大器，且配置爲通道隔離輸入的分流，可測量電流。連接至 ±250-mV 或 ±12-V 輸入範圍隔離放大器，且配置爲群組隔離輸入的潛在分頻器，可測量電壓。隔離放大器介面直接輸出至 24 位元 ΔΣ 類比轉數位轉換器 (ADC)，或使用增益放大器擴展至 ±10 V，並連接至 16 位元 SAR ADC (...)
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SO-MOD (DWE) 16 Ultra Librarian
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