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隔離式 ADC

AMC3306M25

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調變器

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產品規格表

AMC3306M25

現行
產品規格表 立即訂購

產品詳細資料

Device type Current sensing Peak-to-peak input voltage range (V) 250mV Interface type Serial CMOS Sample rate (max) (Msps) 21 Rating Catalog CMTI (min) (kV/µs) 75 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 81 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 85.8 SFDR (dB) 88 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 4250 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6 Creepage (min) (mm) 8 Clearance (min) (mm) 8
Device type Current sensing Peak-to-peak input voltage range (V) 250mV Interface type Serial CMOS Sample rate (max) (Msps) 21 Rating Catalog CMTI (min) (kV/µs) 75 Number of input channels 1 Architecture Delta-Sigma SNR (dB) 81 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 85.8 SFDR (dB) 88 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 4250 Working isolation voltage (VIOWM) (Vrms) 1200 Transient isolation voltage (VIOTM) (VPK) 6 Creepage (min) (mm) 8 Clearance (min) (mm) 8
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
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Low DC errors:
    • Offset error: ±50 µV (max)
    • Offset drift: ±1 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±35 ppm/°C (max)
  • High CMTI: 75 kV/µs (min)
  • System-level diagnostic features
  • Low EMI: Meets CISPR-11 and CISPR-25 standards
  • Safety-related certifications:
    • 6000-VPEAK 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
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Low DC errors:
    • Offset error: ±50 µV (max)
    • Offset drift: ±1 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±35 ppm/°C (max)
  • High CMTI: 75 kV/µs (min)
  • System-level diagnostic features
  • Low EMI: Meets CISPR-11 and CISPR-25 standards
  • Safety-related certifications:
    • 6000-VPEAK 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 AMC3306M25 is a precision, isolated delta-sigma (ΔΣ) modulator, 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 AMC3306M25 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage sources with low signal levels. The excellent DC accuracy and low temperature drift support accurate current measurements over the extended industrial temperature range from –40°C to +125°C.

By using a digital filter (such as a sinc3 filter) to decimate the bitstream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB at a data rate of 78 kSPS.

The AMC3306M25 is a precision, isolated delta-sigma (ΔΣ) modulator, 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 AMC3306M25 is optimized for direct connection to a low-impedance shunt resistor or other, low-impedance voltage sources with low signal levels. The excellent DC accuracy and low temperature drift support accurate current measurements over the extended industrial temperature range from –40°C to +125°C.

By using a digital filter (such as a sinc3 filter) to decimate the bitstream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB at a data rate of 78 kSPS.
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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 AMC3306M25 High-Precision, ±250-mV Input, Reinforced Isolated Delta-Sigma Modulator With Integrated DC/DC Converter datasheet (Rev. B) PDF | HTML 2021/4/26
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
白皮書 Comparing Isolated Amplifiers and Isolated Modulators (Rev. B) PDF | HTML 2024/6/4
應用說明 Clock Edge Delay Compensation With Isolated Modulators Digital Interface to MCUs (Rev. A) PDF | HTML 2024/1/12
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 2023/5/4
應用說明 Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023/3/29
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
白皮書 為太陽能電網增添儲能功能的四項 重要設計考量 Download English Version 2021/5/5
技術文章 Simplify your isolated current and voltage sensing designs with single-supply isol PDF | HTML 2020/10/26

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開發板

AMC-MOD-50A-EVM — 適用於 50A 隔離式電流感測的 AMC1306 評估模組

AMC-MOD-50A-EVM 是一款隔離式電流感測評估模組，專為 ±50A 分流架構電流感測設計。此 EVM 可透過外部分流電阻器感測高達 ±50A 峰值電流，同時透過 AMC1306M05 的隔離層測量隔離輸出。AMC1306M05 是一款針對分流架構電流量測最佳化的高精密隔離式調變器，並與 Isabellenhütte™ 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

AMC3306EVM — 具有整合式 DC/DC 轉換器的 AMC3306 精密度強化型隔離式調變器評估模組

AMC3306 評估模組 (EVM) 是用於評估 AMC3306 產品的平台，此平台是具備整合式 DC/DC 轉換器的精準隔離式放大器，可由轉換器供電給放大器高壓側。AMC3306 是一款 7-kV 強化型隔離式調變器，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

AMC3306M25 IBIS Model

SBAM443.ZIP (24 KB) - IBIS 模型
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計算工具

MODULATOR-TIMING-EXCEL-CALC — Isolated Modulator Digital Communication Timing Calculation Tool

Use this excel calculator to confirm the correct clock setup and hold timing compensation method with an isolated modulator and SDFM controller.
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SBAR010 — Delta Sigma Modulator Filter Calculator

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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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