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AMC3302

現行

具有整合式 DC/DC 的 ±50-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

AMC3302

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) 0.05 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) 0.0001 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) 0.05 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) 0.0001 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)
  • 3.3-V or 5-V single supply with integrated DC/DC converter
  • ±50-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 41
  • Low DC errors:
    • Offset voltage: ±50 µV (max)
    • Offset drift: ±0.5 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain error drift: ±35 ppm/°C (max)
    • Nonlinearity: ±0.03% (max)
  • High CMTI: 95 kV/µs (min)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11
    • 4250-VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C
  • 3.3-V or 5-V single supply with integrated DC/DC converter
  • ±50-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 41
  • Low DC errors:
    • Offset voltage: ±50 µV (max)
    • Offset drift: ±0.5 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain error drift: ±35 ppm/°C (max)
    • Nonlinearity: ±0.03% (max)
  • High CMTI: 95 kV/µs (min)
  • System-level diagnostic features
  • Meets CISPR-11 and CISPR-25 EMI standards
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11
    • 4250-VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C

The AMC3302 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 VDE V 0884-11 and UL1577 and supports a working voltage of up to 1.2 kVRMS.

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 AMC3302 is optimized for direct connection to a low-impedance shunt resistor or another 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 AMC3302 simplify system-level design and diagnostics.

The AMC3302 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 VDE V 0884-11 and UL1577 and supports a working voltage of up to 1.2 kVRMS.

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 AMC3302 is optimized for direct connection to a low-impedance shunt resistor or another 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 AMC3302 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 AMC3302 High-Precision, ±50-mV Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter datasheet (Rev. B) PDF | HTML 2021/7/22
證書 VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 2026/7/15
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
技術文章 為更安全的太陽能系統和 EV 充電器提供準確的電流感測 PDF | HTML Download English Version PDF | HTML 2024/4/17
Application brief Utilizing AMC3311 to Power AMC23C11 for Isolated Sensing and Fault Detection PDF | HTML 2023/11/9
白皮書 How Accurate Sensing Enables Better System Performance and Increased Efficiency (Rev. C) PDF | HTML 2023/10/22
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
Circuit design Isolated Current-Sensing Circuit With Front-End Gain Stage PDF | HTML 2023/4/24
證書 UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) 2023/1/23
應用說明 Design Considerations for Current Sensing in DC EV Charging Applications PDF | HTML 2022/12/13
應用說明 Best Practices to Attenuate AMC3301 Family Radiated Emissions EMI (Rev. A) PDF | HTML 2022/9/22
Circuit design Isolated Current-Sensing Circuit With ±50-mV Input and Single-Ended Output PDF | HTML 2022/7/28
Application brief Achieving High-Performance Isolated Current and Voltage Sensing in Server PSUs PDF | HTML 2022/7/21
Circuit design Isolated Current-Sensing Circuit With ±50-mV Input and Differential Output PDF | HTML 2022/6/30
證書 AMC3302EVM EU RoHS Declaration of Conformity (DoC) (Rev. B) 2022/6/29
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
Application brief Accuracy Comparison of Isolated Shunt and Closed-Loop Current Sensing PDF | HTML 2020/9/18

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)。

開發板

AMC-AMP-200APK-EVM — AMC3302 ±200A 基於分流的電流感測評估模組

AMC-AMP-200A-EVM 是一款隔離式電流感測評估模組，專為 ±200A 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 ±500A 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，並與一個 100µΩ 分流電阻器配對。此 EVM 透過貫孔縫合技術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

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

AMC3302EVM — 適用於 ±50-mV 輸入精密強化型隔離放大器的 AMC3302 評估模組

AMC3302 評估模組 (EVM) 是用於評估 AMC3302 的平台，此平台是具備整合式 DC/DC 轉換器的精密隔離式放大器，可供電給放大器高壓側。AMC3302 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

AMC3302 PSpice Model

SBAM475.ZIP (13 KB) - PSpice 模型
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模擬型號

AMC3302 TINA-TI Spice Model (Rev. B)

SBAM444B (152 KB) - TINA-TI Spice 模型
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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

PMP22650 — GaN 式 6.6-kW 雙向車載充電器參考設計

PMP22650 參考設計為 6.6-kW 雙向車載充電器。此設計採用雙相圖騰柱 PFC 與具同步整流的全橋 CLLLC 轉換器。CLLLC 利用頻率和相位調變來調節所需調節範圍內的輸出。此設計在 TMS320F28388D 微控制器中使用單一處理核心，以控制 PFC 和 CLLLC 二者。同步整流可透過與 Rogowski 線圈電流感測器相同的微控制器實作。透過使用高速 GaN 開關 (LMG3522) 可實現高密度。PFC 以 120 kHz 運作，CLLLC 則以 200 kHz 至 800 kHz 的可變頻率運作。開放訊框功率密度 3.8 kW/L 實現 96.5% (...)
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參考設計

TIDA-010210 — 以 GaN 為基礎的 11kW、雙向、三相 ANPC 參考設計

此參考設計提供實作三階三相氮化鎵 (GaN) 型 ANPC 逆變器功率級的設計範本。使用快速切換功率裝置可在更高的 100 kHz 頻率進行切換、減少濾波器的磁性元件尺寸，以及提升功率級的功率密度。多階拓撲允許在高達 1000 V 的較高 DC 匯流排電壓下使用 600-V 額定電源裝置。低切換電壓應力減少切換損耗，導致峰值效率達 98.5%。

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參考設計

TIDA-010236 — 適用於電器的 4-kW GaN 圖騰柱 PFC 參考設計

此參考設計為 4-kW 連續傳導模式 (CCM) 圖騰柱功率因數修正 (PFC)，附有頂部冷卻氮化鎵 (GaN) 子板和 TMS320F280025C 數位控制器。除了 LMG352x 和 C2000 的整合式防護功能，還會實作完整防護。AC 壓降、突波與傳導式排放 (CE) 皆通過完整驗證，可利用 C2000 與 GaN 提供高效率且穩固的圖騰柱 PFC 設計。
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