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隔離式放大器

AMC1200

現行

±250-mV 輸入、精密電流感測基本型隔離放大器

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產品規格表

AMC1200

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) 0.25 Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 4250 Working isolation voltage (VIOWM) (Vrms) 800 Transient isolation voltage (VIOTM) (VPK) 4250 CMTI (min) (kV/µs) 10 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 1.5 Rating Catalog Operating temperature range (°C) -40 to 105
Device type Current sensing Peak-to-peak input voltage range (V) 0.25 Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 4250 Working isolation voltage (VIOWM) (Vrms) 800 Transient isolation voltage (VIOTM) (VPK) 4250 CMTI (min) (kV/µs) 10 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5 Input offset (±) (max) (V) 0.0015 Input offset drift (±) (typ) (µV/°C) 1.5 Rating Catalog Operating temperature range (°C) -40 to 105
SOIC (DWV) 8 67.275 mm² 5.85 x 11.5 SOP (DUB) 8 98.8 mm² 9.5 x 10.4
  • ±250-mV Input Voltage Range Optimized for
    Shunt Resistors
  • Very Low Nonlinearity: 0.075% Maximum at 5 V
  • Low Offset Error: 1.5 mV Maximum
  • Low Noise: 3.1 mVRMS Typical
  • Low High-Side Supply Current:
    8 mA Maximum at 5 V
  • Input Bandwidth: 60 kHz Minimum
  • Fixed Gain: 8 (0.5% accuracy)
  • High Common Mode Rejection Ratio: 108 dB
  • 3.3-V Operation on Low-Side
  • Certified Galvanic Isolation:
    • UL1577 and VDE V 0884-10 Approved
    • Isolation Voltage: 4250 VPEAK (AMC1200B)
    • Working Voltage: 1200 VPEAK
    • Transient Immunity: 10 kV/µs Minimum
  • Typical 10-Year Lifespan at Rated Working
    Voltage (see Application Report SLLA197)
  • Fully Specified Over the Extended Industrial
    Temperature Range
  • ±250-mV Input Voltage Range Optimized for
    Shunt Resistors
  • Very Low Nonlinearity: 0.075% Maximum at 5 V
  • Low Offset Error: 1.5 mV Maximum
  • Low Noise: 3.1 mVRMS Typical
  • Low High-Side Supply Current:
    8 mA Maximum at 5 V
  • Input Bandwidth: 60 kHz Minimum
  • Fixed Gain: 8 (0.5% accuracy)
  • High Common Mode Rejection Ratio: 108 dB
  • 3.3-V Operation on Low-Side
  • Certified Galvanic Isolation:
    • UL1577 and VDE V 0884-10 Approved
    • Isolation Voltage: 4250 VPEAK (AMC1200B)
    • Working Voltage: 1200 VPEAK
    • Transient Immunity: 10 kV/µs Minimum
  • Typical 10-Year Lifespan at Rated Working
    Voltage (see Application Report SLLA197)
  • Fully Specified Over the Extended Industrial
    Temperature Range

The AMC1200 and AMC1200B are precision isolation amplifiers with an output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier has been certified to provide galvanic isolation of up to 4250 VPEAK (AMC1200B) or 4000 VPEAK (AMC1200) according to UL1577 and VDE V 0884-10. Used in conjunction with isolated power supplies, these devices prevent noise currents on a high common mode voltage line from entering the local ground and interfering with or damaging sensitive circuitry.

The input of the AMC1200 or AMC1200B is optimized for direct connection to shunt resistors or other low voltage level signal sources. The excellent performance of the device supports accurate current control resulting in system-level power saving and, especially in motor-control applications, lower torque ripple. The common mode voltage of the output signal is automatically adjusted to either the 3-V or 5-V low-side supply.

The AMC1200 and AMC1200B are fully specified over the extended industrial temperature range of –40°C to 105°C and are available in a wide-body SOIC-8 package (DWV) and a gullwing-8 package (DUB).

The AMC1200 and AMC1200B are precision isolation amplifiers with an output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier has been certified to provide galvanic isolation of up to 4250 VPEAK (AMC1200B) or 4000 VPEAK (AMC1200) according to UL1577 and VDE V 0884-10. Used in conjunction with isolated power supplies, these devices prevent noise currents on a high common mode voltage line from entering the local ground and interfering with or damaging sensitive circuitry.

The input of the AMC1200 or AMC1200B is optimized for direct connection to shunt resistors or other low voltage level signal sources. The excellent performance of the device supports accurate current control resulting in system-level power saving and, especially in motor-control applications, lower torque ripple. The common mode voltage of the output signal is automatically adjusted to either the 3-V or 5-V low-side supply.

The AMC1200 and AMC1200B are fully specified over the extended industrial temperature range of –40°C to 105°C and are available in a wide-body SOIC-8 package (DWV) and a gullwing-8 package (DUB).
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類型 標題 日期
* Data sheet AMC1200/B Fully-Differential Isolation Amplifier datasheet (Rev. D) PDF | HTML 2015年 6月 10日
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 2024年 1月 31日
Application brief Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC (Rev. B) PDF | HTML 2023年 6月 2日
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 2023年 5月 4日
White paper Best in Class Radiated Emissions EMI Performance with Isolated Amplifiers (Rev. A) PDF | HTML 2023年 3月 15日
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 1 (Rev. A) 2022年 8月 5日
White paper Comparing isolated amplifiers and isolated modulators (Rev. A) 2019年 2月 28日
Technical article Voltage and current sensing in HEV/EV applications PDF | HTML 2017年 11月 22日
Design guide Shunt Based 200A Peak Current Measurement Using Isolation Amplifier Design Guide (Rev. A) 2016年 3月 5日
Certificate CSA Certification (Certificate: 220991) (Rev. A) 2015年 10月 23日
EVM User's guide AMC1200EVM User Guide (Rev. A) 2013年 7月 30日
User guide 0-5 A, Single-Supply, 2 kV Isolated Current Sensing Solution 2013年 6月 18日

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

AMC1200EVM — 適用電流感測之 ±250-mV 輸入基本隔離放大器的 AMC1200 評估模組

The AMC1200 is an isolated single-channel analog amplifier an output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. The AMC1200 is used in high-resolution measurement applications including current monitoring, industrial (...)

使用指南: PDF
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模擬型號

AMC1200 PSpice Model

SBAM289.ZIP (4 KB) - PSpice Model
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模擬型號

AMC1200 TINA-TI Reference Design

SBAM098.ZIP (24 KB) - TINA-TI Reference Design
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模擬型號

AMC1200 TINA-TI Spice Model

SBAM097.ZIP (11 KB) - TINA-TI Spice Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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參考設計

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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。連接到 ±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。連接到 ±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 Δ Σ 類比轉數位轉換器 (ADC)，或使用增益放大器擴展至 (...)
Design guide: PDF
電路圖: PDF
參考設計

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The TIDA-00195 reference design consists of a 22kW power stage with TI’s new reinforced isolated IGBT gate driver ISO5852S intended for motor control in various applications. This design allows performance evaluation of the ISO5852S in 3-phase inverter incorporating 1200V rated IGBT modules (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00810 — 用於測量保護繼電器內的 AC 電壓和電流且具有 Delta-Sigma 晶片診斷功能的參考設計

The TIDA-00810 reference design accurately measures analog inputs performance and includes chip diagnostics to help identify power  systems failures early by using a highly accuracy AC voltage and current measurement analog front end (AFE) and a four-channel, 24-bit simultaneously-sampling (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00834 — 使用具有 ±10V 量測範圍之 16 位元 SAR ADC 的高準確度類比前端參考設計

The TIDA-00834 reference design accurately measures voltage and current inputs using simultaneously sampled, 16-bit, ±10 V, bipolar input SAR ADC critical to identify power systems malfunction and power quality related failures accurately and quickly. This results in reduced power systems (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00835 — 採用 24 位元 Delta-Sigma ADC 的高準確度 ±0.5% 電流和隔離式電壓量測參考設計

The TIDA-00835 reference design allows for accurate voltage and current measurement using a bipolar input configuration by incorporating a four- channel, 24-bit simultaneously-sampling differential input Delta-Sigma ADC over wide dynamic range. The ADC is configured to measure ±2.5 V bipolar (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00445 — 使用隔離放大器且基於分流器的 200A 峰值電流量測參考設計

This reference design is for isolated current measurement using a shunt and isolated amplifier. By limiting the shunt voltage to 25 mV, this design is able to reduce power dissipation in the shunt and achieve a high-current measurement range of up to 200 A. Shunt voltage is further amplified (...)
Design guide: PDF
電路圖: PDF
參考設計

TIPD121 — 隔離式電流感測參考設計解決方案，5A、2kV

This precision reference design provides a user-side solution for providing power to the hot side of an isolated current shunt monitor. The first step in creating an isolated current sense solution, is to provide power to the primary side of the sensor. This reference design will go through the (...)
使用指南: PDF
電路圖: PDF
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