Overview
The ADuM3210WBRZ is a dual-channel digital isolator produced by Analog Devices Inc., utilizing the company's proprietary iCoupler technology. This component combines high-speed CMOS and monolithic transformer technology to provide superior performance compared to traditional optocoupler devices. It eliminates the need for external drivers and discrete components, reducing design complexity and power consumption. The ADuM3210WBRZ operates with supply voltages of 3.3 V or 5 V on either side, enabling voltage translation across the isolation barrier and compatibility with lower voltage systems.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Data Rate | - | 1 | 10 | 25 | Mbps | Within PWD limit |
| Propagation Delay (tPHL, tPLH) | - | 15 | 55 | 55 | ns | 50% input to 50% output |
| Pulse Width Distortion (PWD) | - | 5 | 3 | 3 | ns | |tPLH − tPHL| |
| Change vs. Temperature | - | 6 | 5 | 5 | ps/°C | - |
| Pulse Width (PW) | - | 1000 | 22 | 22 | ns | Within PWD limit |
| Propagation Delay Skew (tPSK) | - | 29 | 22 | 22 | ns | Between any two units |
| Channel Matching Codirectional (tPSKCD) | - | 5 | 3 | 3 | ns | - |
| Channel Matching Opposing Directional (tPSKOD) | - | 29 | 20 | 20 | ns | - |
| Output Rise/Fall Time (tR/tF) | - | 3.0 | 3.0 | 3.0 | ns | 10% to 90% |
| Supply Current (IDD1, IDD2) | - | 1.3, 0.7 | 1.7, 1.0 | 3.5, 1.3 | mA | VDD1 = VDD2 = 5 V |
Key Features
- High-Speed Data Transfer: Supports data rates up to 25 Mbps.
- Dual-Channel Isolation: Provides two independent isolation channels.
- Low Power Consumption: Consumes one-tenth to one-sixth the power of optocouplers at comparable signal data rates.
- Voltage Translation: Operates with 3.3 V or 5 V supply voltages on either side, enabling voltage translation across the isolation barrier.
- Automotive Grade: The ADuM3210WBRZ model is qualified for 125°C operation, making it suitable for automotive applications.
- Improved ESD and Surge Protection: Enhanced capability relative to system-level IEC 61000-4-x testing (ESD, burst, and surge).
Applications
- Industrial Automation: Used in industrial control systems and I/O interfaces.
- Automotive Systems: Suitable for various automotive interfaces such as CAN, audio, and Ethernet.
- Medical Devices: Applied in medical equipment requiring high isolation and low power consumption.
- Power Supplies and DC-DC Converters: Used to isolate feedback signals and control circuits.
- Communication Systems: Employed in serial communication interfaces like RS-232, RS-422, and RS-485.
Q & A
- What is the ADuM3210WBRZ used for?
The ADuM3210WBRZ is a dual-channel digital isolator used to isolate digital signals while providing high-speed data transfer and low power consumption. - What are the key advantages of using iCoupler technology over optocouplers?
iCoupler technology avoids the use of LEDs and photodiodes, eliminating issues such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects. It also reduces power consumption and design complexity. - What are the operating supply voltages for the ADuM3210WBRZ?
The ADuM3210WBRZ operates with supply voltages of 3.3 V or 5 V on either side. - What is the maximum data rate supported by the ADuM3210WBRZ?
The ADuM3210WBRZ supports data rates up to 25 Mbps. - Is the ADuM3210WBRZ suitable for automotive applications?
Yes, the ADuM3210WBRZ is an automotive-grade version qualified for 125°C operation. - How does the ADuM3210WBRZ improve ESD and surge protection?
The ADuM3210WBRZ contains circuit and layout changes that enhance its capability relative to system-level IEC 61000-4-x testing (ESD, burst, and surge). - What is the typical propagation delay of the ADuM3210WBRZ?
The typical propagation delay (tPHL, tPLH) is 15 to 55 ns. - Can the ADuM3210WBRZ be used in medical devices?
Yes, it is suitable for medical devices due to its high isolation and low power consumption. - How does the ADuM3210WBRZ handle voltage translation?
The ADuM3210WBRZ enables voltage translation across the isolation barrier, making it compatible with lower voltage systems. - What is the output rise/fall time of the ADuM3210WBRZ?
The output rise/fall time (tR/tF) is 3.0 ns from 10% to 90%.
