Overview
The ADuM3210BRZ, produced by Analog Devices Inc., is a dual-channel digital isolator based on the company's iCoupler® technology. This component combines high-speed CMOS and monolithic transformer technology to provide superior performance characteristics compared to traditional optocoupler devices. It eliminates the design difficulties associated with optocouplers, such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects. The ADuM3210BRZ operates with 3.3 V or 5 V supply voltages on either side, enabling compatibility with lower voltage systems and voltage translation functionality across the isolation barrier.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|---|
| Data Rate | 1 | 10 | Mbps | Within PWD limit | ||
| Propagation Delay | tPHL, tPLH | 15 | 55 | 55 | ns | 50% input to 50% output |
| Pulse Width Distortion | PWD | 5 | 3 | ns | |tPLH − tPHL| | |
| Pulse Width | PW | 1000 | 22 | ns | Within PWD limit (ADuM3210) | |
| Propagation Delay Skew | tPSK | 29 | 20 | ns | Between any two units | |
| Channel Matching Codirectional | tPSKCD | 5 | 3 | ns | ||
| Channel Matching Opposing Directional | tPSKOD | 29 | 20 | ns | ||
| Output Rise/Fall Time | tR/tF | 2.5 | 2.5 | ns | 10% to 90% | |
| Supply Current (IDD1) | 1.3 | 1.7 | 3.5 | mA | ADuM3210 at 3.3V | |
| Supply Current (IDD2) | 0.7 | 1.0 | 1.3 | mA | ADuM3210 at 3.3V |
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 Compatibility: Operates with 3.3 V or 5 V supply voltages on either side, enabling voltage translation functionality.
- Enhanced ESD Reliability: Designed with various circuit and layout changes to increase capability relative to system-level IEC 61000-4-x testing (ESD, burst, and surge).
- Automotive Grade Versions: Models ADuM3210W and ADuM3211W are qualified for 125°C operation.
- Common-Mode Transient Immunity: High common-mode transient immunity up to 25 kV/µs.
Applications
- Industrial I/O: Suitable for industrial control systems and interfaces.
- Automotive Interfaces: Used in automotive systems such as CAN, audio, and Ethernet interfaces.
- Medical Devices: Applicable in medical devices requiring high isolation and low power consumption.
- RS-232 / RS-422 / RS-485 Interfaces: Used in serial communication interfaces.
- IO-Link and Local Interconnect Networks (LIN): Suitable for IO-Link and LIN applications.
Q & A
- What is the ADuM3210BRZ?
The ADuM3210BRZ is a dual-channel digital isolator based on Analog Devices' iCoupler technology.
- What are the key advantages of the ADuM3210BRZ over optocouplers?
The ADuM3210BRZ offers higher speed, lower power consumption, and more stable performance characteristics compared to optocouplers.
- What are the supported data rates for the ADuM3210BRZ?
The ADuM3210BRZ supports data rates up to 25 Mbps.
- What supply voltages does the ADuM3210BRZ support?
The ADuM3210BRZ operates with 3.3 V or 5 V supply voltages on either side.
- Does the ADuM3210BRZ have automotive-grade versions?
- What is the common-mode transient immunity of the ADuM3210BRZ?
The ADuM3210BRZ has a common-mode transient immunity up to 25 kV/µs.
- How does the ADuM3210BRZ enhance ESD reliability?
The ADuM3210BRZ is designed with various circuit and layout changes to increase capability relative to system-level IEC 61000-4-x testing (ESD, burst, and surge).
- What are some typical applications of the ADuM3210BRZ?
The ADuM3210BRZ is used in industrial I/O, automotive interfaces, medical devices, RS-232 / RS-422 / RS-485 interfaces, and IO-Link and LIN applications.
- What is the propagation delay of the ADuM3210BRZ?
The propagation delay (tPHL, tPLH) is between 15 ns and 55 ns.
- How does the ADuM3210BRZ handle pulse width distortion?
The pulse width distortion (PWD) is typically 3 ns to 5 ns.
