ADUM1201 Dual-Channel Digital Isolator

Key Features:

• Magnetic Isolation Technology: Uses ADI’s iCoupler technology for superior isolation performance
• Dual-Channel Isolation: Provides bi-directional data transmission with high speed and accuracy
• Ultra-Low Power Consumption: Consumes 1/10th of the power of traditional optocouplers
• High-Speed Communication: Supports up to 125Mbps data transfer rate
• Wide Voltage Range: Operates between 2.7V – 5.5V on both isolated sides
• Compact & Efficient Design: Short version PCB for space-saving applications

Technical Specifications:

• Model: ADUM1201 Short Version
• Isolation Voltage: Higher than standard optocouplers (2x the rating)
• Operating Voltage: 2.7V – 5.5V on both isolated sides
• Data Rate: Up to 125Mbps
• Low Current Consumption: 0.8mA operating current
• High CMR Immunity: Superior transient common-mode rejection
• Compact PCB Size: 15.3mm × 10.5mm

Advantages Over Optocouplers:

✔ Higher Data Speed & Accuracy – Supports 125Mbps high-speed data transfer
✔ Lower Power Consumption – Uses 10-50x less power than traditional optocouplers
✔ Smaller PCB Footprint – Occupies 40% less board space than traditional isolation circuits
✔ Bi-Directional Communication – Supports simultaneous forward and reverse communication

Ideal for:

• RS232/RS485/Industrial Bus Isolation
• MCU and Sensor Interface Isolation
• High-Speed Communication Applications
• Power Supply Noise Reduction

âš  Important Note: The ADUM1201 requires both power supplies to be active on both isolated sides for proper operation. Ensure separate reference grounds (GND1 & GND2) to maintain isolation.