ADUM1201BRZ - 2-Ch Digital Isolator 10Mbps | Analog Devices
MPN: ADUM1201BRZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 |
Drop-in alternatives for ADUM1201BRZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ADUM1201ARZ
β Drop-Inπ Reference alternative (not in catalog)
ADUM1201CRZ
β Drop-Inπ Reference alternative (not in catalog)
ADUM1201WTRZ
β Drop-Inπ Reference alternative (not in catalog)
ISO7721D
β Drop-Inπ Reference alternative (not in catalog)
ISO7721DR
β Drop-Inπ Reference alternative (not in catalog)
SI8621BB-B-ISR
β Drop-Inπ Reference alternative (not in catalog)
ADUM1201BRZ Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Channel Directionality | 1/1 (bidirectional) |
| Isolation Voltage | 2500 Vrms |
| Data Rate | 10 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/Β΅s |
| 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) |
| Operating Temperature Range | -40Β°C to +105Β°C |
| Package | 8-SOIC (0.154", 3.90mm width) |
| Mounting Type | Surface Mount |
| Certifications | UL1577, IEC 60747-5-5, CSA |
| RoHS Status | Compliant |
| MSL Level | 1 (unlimited) |
ADUM1201BRZ Pin Configuration
| Pin 1 | VDD1 β Supply voltage for side 1 (2.7V to 5.5V) |
| Pin 2 | GND1 β Ground for side 1 |
| Pin 3 | VOA β Output of channel A (side 1) |
| Pin 4 | VIA β Input of channel A (side 1) |
| Pin 5 | VIB β Input of channel B (side 2) |
| Pin 6 | VOB β Output of channel B (side 2) |
| Pin 7 | GND2 β Ground for side 2 |
| Pin 8 | VDD2 β Supply voltage for side 2 (2.7V to 5.5V) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADUM1201BRZ is suitable for 6 applications: 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/Β΅s ensures reliable operation in electrically noisy industrial environments, making it ideal for PLCs, motor drives, and factory automation systems.
Recommended
Motor Drive Isolation
In motor drives, the ADUM1201BRZ isolates control signals from the high-voltage power stage. Its 25kV/Β΅s 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.
Recommended
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.
Recommended
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 (-40Β°C to +105Β°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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for ADUM1201BRZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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/Β΅s | 25 kV/Β΅s | 25 kV/Β΅s | 100 kV/Β΅s |
| 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 |
Key Differentiators
- iCoupler technology eliminates optocoupler CTR degradation (vs Optocoupler-based isolators)
- Higher data rate than ADUM1201ARZ (vs ADUM1201ARZ)
- Lower power consumption than optocouplers (vs Optocoupler-based isolators)
Design Notes
Place 0.1Β΅F 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.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified; use ADUM1201WTRZ for automotive.
