ADUM3190ARWZ - 2.5kV Isolated Error Amplifier | Analog Devices
MPN： ADUM3190ARWZ ✓ 啟用中ADUM3190ARWZ 概覽
An isolated error amplifier is a specialized analog IC that transfers an error signal across an isolation barrier without using an optocoupler. It typically includes a precision reference, an error amplifier, and an isolation channel (often based on iCoupler technology) to provide a feedback signal that is galvanically isolated from the output. This component is essential in isolated DC-DC converters and switching power supplies where the feedback path must cross the isolation boundary while maintaining accuracy and stability.
Key features of the ADUM3190ARWZ include a 2.5 kV RMS isolation rating, a 400 mV reference with ±1% accuracy, and a wide operating temperature range of -40°C to +125°C. The device offers a typical gain bandwidth of 400 kHz and a quiescent current of 1.2 mA, enabling efficient operation in power management circuits. Its high stability ensures reliable performance over temperature and time, making it ideal for industrial and automotive power systems.
Technically, the ADUM3190ARWZ uses Analog Devices' iCoupler technology to achieve isolation, which provides superior performance compared to optocoupler-based solutions, including better temperature stability and longer lifespan. The error amplifier has a transconductance output that can be compensated with external components to optimize loop stability. The device also includes an internal reference that can be used for voltage regulation, simplifying the external circuit.
Typical applications include isolated DC-DC converters, offline power supplies, and isolated voltage sensing in motor drives and battery management systems. The device is particularly suited for applications requiring precise voltage regulation across an isolation barrier, such as telecom and server power supplies.
When designing with the ADUM3190ARWZ, ensure proper PCB layout to maintain isolation creepage and clearance distances. The feedback loop compensation should be designed according to the datasheet guidelines to achieve stable operation. The device is RoHS compliant and available in tape and reel packaging.
直接替換替代品，適用於 ADUM3190ARWZ — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADUM3190ARWZ （相同外形與佔位） — 差異在於 Output Type, Package, Reference Voltage, Bandwidth, Isolation Voltage.
ADUM3190BRWZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ADUM3190ARWZ-RL7
✅ 直接替換聯絡詢價
查看資料表 →ADUM3190WARWZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ADUM3190ARWZ 最大額定值與電氣特性
| Isolation Rating | 2.5 kV RMS |
| 參考電壓 | 400 mV |
| Reference Accuracy | ±1% |
| Supply Voltage Range | 3.0 V to 20 V |
| Gain Bandwidth | 400 kHz |
| 靜態電流 | 1.2 mA |
| 工作溫度範圍 | -40°C to +125°C |
| 封裝 | 16-Lead SOIC-W |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Isolation Technology | iCoupler |
| 輸出類型 | Transconductance |
| Number of Channels | 1 |
ADUM3190ARWZ 腳位配置
| 腳位 1 | VDD1 — Primary side supply voltage |
| 腳位 2 | GND1 — Primary side ground |
| 腳位 3 | IN+ — Non-inverting input of error amplifier |
| 腳位 4 | IN- — Inverting input of error amplifier |
| 腳位 5 | REF — Internal reference output |
| 腳位 6 | COMP — Compensation pin for error amplifier |
| 腳位 7 | GND1 — Primary side ground |
| 腳位 8 | NC — No connect |
| 腳位 9 | NC — No connect |
| 腳位 10 | VDD2 — Secondary side supply voltage |
| 腳位 11 | GND2 — Secondary side ground |
| 腳位 12 | OUT — Isolated error amplifier output |
| 腳位 13 | GND2 — Secondary side ground |
| 腳位 14 | NC — No connect |
| 腳位 15 | NC — No connect |
| 腳位 16 | NC — No connect |
典型應用
ADUM3190ARWZ 適用於 6 應用s: Isolated DC-DC Converters, Offline Power Supplies, Motor Drives, Battery Management Systems, Telecom Power Supplies, Server Power Supplies.
Isolated DC-DC Converters
The ADUM3190ARWZ provides isolated voltage feedback in DC-DC converters, ensuring accurate regulation across the isolation barrier. Its 400 mV reference and 2.5 kV isolation make it ideal for telecom and industrial power supplies. The error amplifier's transconductance output allows easy loop compensation, and the wide supply range supports various input voltages. Compared to optocoupler solutions, it offers better temperature stability and longer lifespan, enhancing converter reliability.
推薦
Offline Power Supplies
In offline power supplies, the ADUM3190ARWZ provides isolated feedback from the secondary side to the primary controller. Its high stability ensures consistent regulation over temperature and time, critical for reliable operation. The 2.5 kV isolation rating meets safety requirements for mains-isolated designs. The device's low quiescent current (1.2 mA) contributes to overall efficiency, and the wide operating temperature range (-40°C to +125°C) suits harsh environments.
推薦
Motor Drives
The ADUM3190ARWZ is used in motor drives for isolated voltage sensing and feedback. Its 2.5 kV isolation protects low-voltage control circuits from high-voltage motor rails. The precision 400 mV reference enables accurate voltage monitoring, while the 400 kHz bandwidth supports fast loop response. The device's robustness over -40°C to +125°C makes it suitable for industrial motor control environments. Its transconductance output simplifies interface with PWM controllers.
推薦
Battery Management Systems
In battery management systems (BMS), the ADUM3190ARWZ provides isolated voltage feedback for cell monitoring and balancing circuits. Its 2.5 kV isolation ensures safe communication between high-voltage battery stacks and low-voltage control electronics. The 400 mV reference with ±1% accuracy allows precise voltage measurement, essential for battery health monitoring. The wide supply range (3V-20V) accommodates various BMS architectures, and the low quiescent current minimizes power drain.
推薦
Telecom Power Supplies
The ADUM3190ARWZ is ideal for telecom power supplies requiring isolated feedback with high reliability. Its 2.5 kV isolation meets telecom safety standards, and the high stability ensures consistent output voltage over time. The device's 400 kHz bandwidth supports fast transient response, crucial for telecom loads. The wide operating temperature range and RoHS compliance make it suitable for long-life telecom infrastructure.
推薦
Server Power Supplies
In server power supplies, the ADUM3190ARWZ provides isolated voltage feedback for high-efficiency AC-DC and DC-DC stages. Its 2.5 kV isolation ensures safe operation in high-voltage environments. The precision 400 mV reference enables tight output regulation, critical for server loads. The device's low quiescent current and high stability contribute to overall power supply efficiency and reliability, meeting the demanding requirements of data centers.
推薦
推薦產品摘要
工程參考資料，適用於 ADUM3190ARWZ — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ADUM3190ARQZ | ADUM3190BRWZ | ADUM3190ARWZ-RL7 |
|---|---|---|---|---|
| Package | 16-Lead SOIC-W | 16-Lead QSOP | 16-Lead SOIC-W | 16-Lead SOIC-W |
| Isolation Rating | 2.5 kV RMS | 2.5 kV RMS | 2.5 kV RMS | 2.5 kV RMS |
| Reference Voltage | 400 mV | 400 mV | 400 mV | 400 mV |
| Supply Voltage Range | 3.0 V to 20 V | 3.0 V to 20 V | 3.0 V to 20 V | 3.0 V to 20 V |
| Gain Bandwidth | 400 kHz | 400 kHz | 400 kHz | 400 kHz |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| RoHS | Compliant | Compliant | Compliant | Compliant |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
主要差異化特點
- Higher isolation rating than many competitors (對比ADUM3190ARQZ)
- Precision 400 mV reference with ±1% accuracy (對比ADUM3190BRWZ)
- Wide supply voltage range (3V-20V) (對比ADUM3190ARQZ)
設計說明
For the ADUM3190ARWZ, maintain proper creepage and clearance distances on the PCB to meet the 2.5 kV isolation rating. Use a minimum of 8 mm creepage between primary and secondary side traces. Place the device with a slot or barrier under the IC to enhance isolation. Follow the layout guidelines in the ADuM3190 datasheet.
The ADUM3190ARWZ requires a bypass capacitor of at least 0.1 µF on both VDD1 and VDD2 pins, placed close to the device. For noisy environments, use a 1 µF capacitor in parallel. Ensure the supply voltage stays within 3.0 V to 20 V to avoid damage. The quiescent current is 1.2 mA, so power dissipation is minimal.
Do not exceed the absolute maximum ratings, especially the isolation voltage. Ensure the reference pin is not loaded beyond its specified current. The COMP pin requires external compensation components for stable operation; refer to the datasheet for typical values. Avoid routing high-speed digital traces near the analog inputs to prevent noise coupling.
合規資訊
RoHS compliance confirmed by Analog Devices. Other compliance data not specified in the provided sources.
