ADUM1201BRZ - 2-Ch Digital Isolator 10Mbps | Analog Devices
料号： ADUM1201BRZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
ADUM1201BRZ 概述
A digital isolator is a component that provides electrical isolation between two circuits while allowing digital signals to pass across the isolation barrier. Unlike optocouplers, which use LEDs and photodiodes, iCoupler devices use monolithic transformers and high-speed CMOS, eliminating concerns about current transfer ratio (CTR) degradation, nonlinear transfer functions, and temperature/lifetime effects. This results in more stable performance and lower power consumption—iCoupler devices consume about one-tenth the power of comparable optocouplers.
Key features of the ADUM1201BRZ include a bidirectional channel configuration (1/1 directionality), a maximum data rate of 10Mbps, and a CMTI of 25kV/µs, which ensures reliable operation in noisy industrial environments. The device also offers a wide operating temperature range of -40°C to +105°C, making it suitable for harsh applications. The SOIC-8 package is industry-standard, enabling easy PCB layout and drop-in replacement in many designs.
Technically, the ADUM1201BRZ uses a 2.7V to 5.5V supply range on both VDD1 and VDD2, with a maximum quiescent current of 2.6mA per channel. The propagation delay is typically 50ns, and the pulse width distortion is 3ns, ensuring accurate signal transmission. The device is certified to UL1577, IEC 60747-5-5, and CSA standards, providing robust isolation ratings.
Typical applications include industrial fieldbus isolation, motor drives, battery monitoring, hybrid electric vehicles, and digital isolation in power supplies. The ADUM1201BRZ is particularly well-suited for isolating SPI, UART, and other serial interfaces where high-speed data transfer and reliable isolation are required.
When designing with this device, ensure that the bypass capacitors (0.1µF) are placed close to the VDD pins to minimize noise. Also, consider the maximum data rate and CMTI requirements of your application to ensure the device meets your performance needs.
直接替换替代料： ADUM1201BRZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADUM1201BRZ （相同外形与封装尺寸） ——差异在于 Channel Directionality, Common-Mode Transient Immunity (CMTI), Isolation Voltage, Operating Temperature Range, Propagation Delay.
快速对比工具——选择替代料号进行并排对比：
ADUM1201ARZ
✅ 直接替换✓ 有现货
$1.22 / 个
查看数据手册 →ADUM1201CRZ
✅ 直接替换📋 参考替代料（不在目录中）
ADUM1201WTRZ
✅ 直接替换📋 参考替代料（不在目录中）
ISO7721D
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ISO7721DR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
SI8621BB-B-ISR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADUM1201BRZ 规格参数
| Number of Channels | 2 |
| Channel Directionality | 1/1 (bidirectional) |
| Isolation Voltage | 2500 Vrms |
| 数据速率 | 10 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| Supply Voltage (VDD1/VDD2) | 2.7 V to 5.5 V |
| Propagation Delay | 50 ns (typical) |
| Pulse Width Distortion | 3 ns (typical) |
| Quiescent Current (per channel) | 2.6 mA (maximum) |
| 工作温度范围 | -40°C to +105°C |
| 封装 | 8-SOIC (0.154", 3.90mm width) |
| 安装类型 | Surface Mount |
| Certifications | UL1577, IEC 60747-5-5, CSA |
| RoHS 状态 | Compliant |
| MSL 等级 | 1 (unlimited) |
ADUM1201BRZ 引脚配置
| 引脚 1 | VDD1 — Supply voltage for side 1 (2.7V to 5.5V) |
| 引脚 2 | GND1 — Ground for side 1 |
| 引脚 3 | VOA — Output of channel A (side 1) |
| 引脚 4 | VIA — Input of channel A (side 1) |
| 引脚 5 | VIB — Input of channel B (side 2) |
| 引脚 6 | VOB — Output of channel B (side 2) |
| 引脚 7 | GND2 — Ground for side 2 |
| 引脚 8 | VDD2 — Supply voltage for side 2 (2.7V to 5.5V) |
典型应用
ADUM1201BRZ 适用于 6 应用s: Industrial Fieldbus Isolation, Motor Drive Isolation, Battery Monitoring, Hybrid Electric Vehicles (HEV), Digital Fieldbus Isolation, Power Supply Isolation.
Industrial Fieldbus Isolation
The ADUM1201BRZ provides galvanic isolation for fieldbus interfaces such as RS-485 and CAN. Its 10Mbps data rate supports high-speed communication, while the 2500Vrms isolation protects against ground loops and voltage transients. The high CMTI of 25kV/µs ensures reliable operation in electrically noisy industrial environments, making it ideal for PLCs, motor drives, and factory automation systems.
推荐
Motor Drive Isolation
In motor drives, the ADUM1201BRZ isolates control signals from the high-voltage power stage. Its 25kV/µs CMTI prevents false triggering due to fast switching transients, and the 10Mbps data rate handles PWM signals with minimal delay. The wide supply range (2.7V to 5.5V) allows interfacing with both 3.3V microcontrollers and 5V gate drivers, simplifying the design.
推荐
Battery Monitoring
The ADUM1201BRZ is used in battery management systems (BMS) to isolate the cell monitoring circuitry from the main controller. Its low power consumption and high data rate enable efficient communication of voltage and temperature data. The 2500Vrms isolation protects the low-voltage control side from high-voltage battery stacks, ensuring safety and reliability in electric vehicles and energy storage systems.
推荐
Hybrid Electric Vehicles (HEV)
In HEVs, the ADUM1201BRZ isolates communication between the battery management system, motor controller, and other high-voltage components. Its automotive temperature range (-40°C to +105°C) and robust isolation make it suitable for under-hood environments. The device's high CMTI ensures reliable operation in the presence of electromagnetic interference from traction motors and inverters.
推荐
Digital Fieldbus Isolation
The ADUM1201BRZ is ideal for isolating digital fieldbus protocols like PROFIBUS and Modbus. Its 10Mbps data rate supports high-speed communication, and the bidirectional channel configuration allows for both transmit and receive signals in a single device. The SOIC-8 package is compact, saving board space in space-constrained fieldbus nodes.
推荐
Power Supply Isolation
The ADUM1201BRZ provides isolation for feedback and control signals in switch-mode power supplies. Its high CMTI prevents noise from the switching node from corrupting the control signal, and the low propagation delay ensures stable regulation. The device's wide supply range allows it to interface with both primary and secondary side controllers.
推荐
推荐产品汇总
工程参考数据： ADUM1201BRZ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ADUM1201ARZ | ADUM1201CRZ | ISO7721D |
|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Data Rate | 10 Mbps | 1 Mbps | 100 Mbps | 100 Mbps |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 100 kV/µs |
| Supply Voltage Range | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.25V to 5.5V |
| Propagation Delay | 50 ns | 100 ns | 32 ns | 16 ns |
| Automotive Grade | No | No | No | No |
关键差异点
- iCoupler technology eliminates optocoupler CTR degradation （对比 Optocoupler-based isolators)
- Higher data rate than ADUM1201ARZ （对比 ADUM1201ARZ)
- Lower power consumption than optocouplers （对比 Optocoupler-based isolators)
设计说明
Place 0.1µF bypass capacitors close to VDD1 and VDD2 pins to minimize noise. Use a solid ground plane under the device to reduce EMI. Ensure adequate creepage distance between the two sides of the isolator on the PCB to maintain the isolation rating.
Keep the isolation barrier clear of copper traces and components to maintain the specified isolation voltage. Route high-voltage traces away from the low-voltage side to prevent arcing. Follow the recommended PCB layout in the datasheet for optimal performance.
Do not exceed the absolute maximum ratings for supply voltage or input/output currents. Ensure that the input signals do not exceed the supply voltage range. Also, verify that the data rate and CMTI requirements of your application are within the device's specifications to avoid signal integrity issues.
合规信息
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified; use ADUM1201WTRZ for automotive.
