The ADuM1201 Dual Channel Digital Isolator Module by Analog Devices is designed with advanced iCoupler® technology to provide superior electrical isolation while maintaining high-speed signal integrity. Unlike traditional optocouplers, this isolator ensures lower power consumption, higher reliability, and longer lifespan. It supports seamless logic level conversion between 3.3V and 5V systems, making it suitable for mixed-voltage environments in embedded designs. With its compact size, the ADuM1201 is widely used in microcontroller interfaces, industrial control systems, data acquisition, and safety-critical applications where galvanic isolation is essential. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
Dual-channel digital isolator for reliable signal transmission
Utilizes iCoupler® technology for enhanced isolation performance
Provides 3.3V ↔ 5V logic level conversion
Operates with low power consumption compared to optocouplers
High data rate capability for real-time communication systems
Compact and lightweight, easy to integrate into PCB designs
Long-term stability and reliability in industrial environments
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Applications:
Microcontroller-to-sensor or peripheral isolation
Industrial automation and control systems
Safety-critical communication between high-voltage and low-voltage circuits
Data acquisition systems requiring noise immunity
Isolation in medical instrumentation and monitoring devices
Embedded systems with mixed 3.3V and 5V components
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| General Specifications |
| Model | ADuM1201 Dual Channel Digital Isolator |
| Technology | iCoupler® (Analog Devices) |
| Isolation Channels | 2 |
| Logic Level Support | 3.3V ↔ 5V |
| Functionality | Signal isolation & level shifting |
| Operating Voltage Range | 3.0V – 5.5V |
| Power Consumption | Low (compared to optocouplers) |
| Data Rate | High-speed (up to 1 Mbps or more depending on config) |
| Module Type | PCB-compatible module |
| Shipment Weight | 0.0016 kg |
| Shipment Dimensions (cm) | 3 × 3 × 3 |
Please allow 5% measuring deviation due to manual measurement.
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Documentation:
Module Operation
The module has two separate power system connections. VDD1 and GND1 (pins V1 & G1) are used on one side of the module and would come from one power system, such as the microcontroller power system while VDD2 and GND2 (pins V2 & G2) are used on the other side of the module and would come from a second power system such as the serial device power system in order to provide complete electrical isolation.
Each of the two power connections has a bypass capacitor included on the module. Both sides of the module support a voltage range of 2.7V to 5.5V which allows for logic level conversion between 3.3V and 5V systems should that be required. If the module is being used for logic level conversion only without providing isolation, both the 3.3V and 5V can come from the same power system and the grounds can be common.
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Module Connections
The module is laid out to mirror the chip pinout. The drawing and pin labes above is from the datasheet. The pin labels used on the module itself are shown below
The module has the following I/O connections:
- V1 = 2.7 – 5.5V from power system 1 (VDD1)
- AO = Channel A Output (VOA)
- BI = Channel B Input (VIB)
- G1 = Ground for power system 1 (GND1)
- G2 = Ground for power system 2 (GND2)
- BO = Channel B Output (VOB)
- AI = Channel A Input (VIA)
- V2 = 2.7 – 5.5V from power system 2 (VDD2)
If using for logic level conversion only, V1 and V2 can come from the same power system and the grounds can be common. Both ground pins must be connected.
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Package Includes:
1 x ADuM1201 Dual Channel Digital Isolator Module
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