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隔離式放大器

AMC1400

現行

具高 CMTI 的 ±250mV 輸入、精密度電流感測強化型隔離放大器

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產品規格表

AMC1400

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) 7500 Working isolation voltage (VIOWM) (Vrms) 2000 Transient isolation voltage (VIOTM) (VPK) 10600 CMTI (min) (kV/µs) 100 Creepage (min) (mm) 15.7 Clearance (min) (mm) 15.7 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 0.1 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) 7500 Working isolation voltage (VIOWM) (Vrms) 2000 Transient isolation voltage (VIOTM) (VPK) 10600 CMTI (min) (kV/µs) 100 Creepage (min) (mm) 15.7 Clearance (min) (mm) 15.7 Input offset (±) (max) (V) 0.0002 Input offset drift (±) (typ) (µV/°C) 0.1 Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (DWL) 8 106.24 mm² (6.4 mm × 16.6 mm)
  • ±250-mV input voltage range optimized for current measurements using shunt resistors
  • Fixed gain: 8.2 V/V
  • Low DC errors:
    • Offset error: ±0.2 mV (max)
    • Offset drift: ±0.9 µV/°C (max)
    • Gain error: ±0.3% (max)
    • Gain drift: ±30 ppm/°C (max)
    • Nonlinearity: 0.03% (max)
  • 3.3-V or 5-V operation on high-side and low-side
  • Missing high-side supply detection feature
  • High CMTI: 100 kV/µs (min)
  • Low EMI, meets CISPR-11 and CISPR-32 standards
  • ≥15.7-mm creepage, stretched SOIC package
  • Safety-related certifications:
    • 10600-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 7500-VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C
  • ±250-mV input voltage range optimized for current measurements using shunt resistors
  • Fixed gain: 8.2 V/V
  • Low DC errors:
    • Offset error: ±0.2 mV (max)
    • Offset drift: ±0.9 µV/°C (max)
    • Gain error: ±0.3% (max)
    • Gain drift: ±30 ppm/°C (max)
    • Nonlinearity: 0.03% (max)
  • 3.3-V or 5-V operation on high-side and low-side
  • Missing high-side supply detection feature
  • High CMTI: 100 kV/µs (min)
  • Low EMI, meets CISPR-11 and CISPR-32 standards
  • ≥15.7-mm creepage, stretched SOIC package
  • Safety-related certifications:
    • 10600-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 7500-VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C

The AMC1400 is a precision, isolated amplifier with an output separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 7.5 kVRMS according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577, and supports a working voltage of up to 2 kVRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-side from voltage levels that can cause electrical damage and are potentially harmful to an operator.

The input of the AMC1400 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 control in DC/DC converters, frequency inverters, AC motor drives, and other applications that must operate at high voltages, high altitudes, or in environments with high pollution degrees.

The AMC1400 is offered in a stretched SOIC package and is specified over the extended industrial temperature range from –40°C to +125°C .

The AMC1400 is a precision, isolated amplifier with an output separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 7.5 kVRMS according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577, and supports a working voltage of up to 2 kVRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-side from voltage levels that can cause electrical damage and are potentially harmful to an operator.

The input of the AMC1400 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 control in DC/DC converters, frequency inverters, AC motor drives, and other applications that must operate at high voltages, high altitudes, or in environments with high pollution degrees.

The AMC1400 is offered in a stretched SOIC package and is specified over the extended industrial temperature range from –40°C to +125°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 AMC1400 Precision, ±250-mV Input, Reinforced Isolated Amplifierin a 15-mm Stretched SOIC Package datasheet PDF | HTML 2022/7/25
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 2023/5/4
證書 AMC1400EVM EU RoHS Declaration of Conformity (DoC) 2022/9/20
Circuit design Isolated Current-Sensing Circuit W/ ±250-mV Input Range & Single-Ended Output PDF | HTML 2022/6/27
證書 UL Certificate of Compliance Vol4 Sec13 - E181974 2022/5/20
Application brief TI's First Isolated Amplifiers With Ultra-Wide Creepage and Clearance PDF | HTML 2021/8/13
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

AMC1400EVM — 適用於 ±250-mV 輸入、精密電壓感測隔離放大器的 AMC1400 評估模組

AMC1400 評估模組 (EVM) 是用於開發 AMC1400 的平台，是一款精密度隔離放大器，輸入範圍為 ±250mV，輸出與輸入電路透過高度電阻的二氧化矽 (SiO2) 絕緣層阻絕磁場干擾來進行隔開。AMC1400 10600VPK 強化隔離專為雙極電流測量應用而設計。

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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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