ADUM1201BRZ - 2-Ch Digital Isolator 10Mbps | Analog Devices
MPN: ADUM1201BRZ ✓ Hoạt độngADUM1201BRZ Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ADUM1201BRZ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADUM1201BRZ (cùng hình factor và footprint) — khác nhau ở Channel Directionality, Common-Mode Transient Immunity (CMTI), Isolation Voltage, Operating Temperature Range, Propagation Delay.
ADUM1201ARZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADUM1201CRZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADUM1201WTRZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ISO7721D
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ISO7721DR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
SI8621BB-B-ISR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADUM1201BRZ Thông số kỹ thuật
| Number of Channels | 2 |
| Channel Directionality | 1/1 (bidirectional) |
| Isolation Voltage | 2500 Vrms |
| Tốc độ dữ liệu | 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) |
| Khoảng nhiệt độ hoạt động | -40°C to +105°C |
| Hộp | 8-SOIC (0.154", 3.90mm width) |
| Kiểu lắp đặt | Surface Mount |
| Certifications | UL1577, IEC 60747-5-5, CSA |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 1 (unlimited) |
Cấu hình chân ADUM1201BRZ
| Chân 1 | VDD1 — Supply voltage for side 1 (2.7V to 5.5V) |
| Chân 2 | GND1 — Ground for side 1 |
| Chân 3 | VOA — Output of channel A (side 1) |
| Chân 4 | VIA — Input of channel A (side 1) |
| Chân 5 | VIB — Input of channel B (side 2) |
| Chân 6 | VOB — Output of channel B (side 2) |
| Chân 7 | GND2 — Ground for side 2 |
| Chân 8 | VDD2 — Supply voltage for side 2 (2.7V to 5.5V) |
Ứng dụng tiêu biểu
ADUM1201BRZ phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADUM1201BRZ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- iCoupler technology eliminates optocoupler CTR degradation (vsOptocoupler-based isolators)
- Higher data rate than ADUM1201ARZ (vsADUM1201ARZ)
- Lower power consumption than optocouplers (vsOptocoupler-based isolators)
Ghi chú thiết kế
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.
Thông tin tuân thủ
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified; use ADUM1201WTRZ for automotive.
