Overview
The ADuM3210WBRZ-RL7 is a dual-channel digital isolator produced by Analog Devices Inc., utilizing the company's iCoupler technology. This component combines high-speed CMOS and monolithic transformer technology to provide superior performance compared to traditional optocouplers. It eliminates the design difficulties associated with optocouplers, such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects. The ADuM3210WBRZ-RL7 is designed to operate with 3.3 V or 5 V supply voltages on either side, enabling voltage translation across the isolation barrier and compatibility with lower voltage systems.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|---|
| Data Rate | - | - | - | 25 Mbps | - | Within PWD limit |
| Propagation Delay | tPHL, tPLH | 15 ns | 55 ns | 55 ns | ns | 50% input to 50% output |
| Pulse Width Distortion | PWD | 5 ns | 3 ns | - | ns | |tPLH − tPHL| |
| Change vs. Temperature | - | 6 ps/°C | 5 ps/°C | - | ps/°C | - |
| Pulse Width | PW | 1000 ns | 22 ns | - | ns | Within PWD limit |
| Propagation Delay Skew | tPSK | 29 ns | 22 ns | - | ns | Between any two units |
| Channel Matching Codirectional | tPSKCD | 5 ns | 3 ns | - | ns | - |
| Channel Matching Opposing Directional | tPSKOD | 29 ns | 20 ns | - | ns | - |
| Output Rise/Fall Time | tR/tF | 3.0 ns | 3.0 ns | - | ns | 10% to 90% |
| Supply Voltage | VDD1, VDD2 | 2.7 V to 3.6 V, 4.5 V to 5.5 V | - | - | V | - |
| Supply Current (at 10 Mbps) | IDD1, IDD2 | 1.3 mA, 0.7 mA | 1.7 mA, 1.0 mA | 3.5 mA, 1.3 mA | mA | - |
| Operating Temperature | TA | -40°C | - | +105°C | °C | - |
| Common-Mode Transient Immunity | CMTI | - | - | 25 kV/μs | kV/μs | - |
| Isolation Voltage | - | - | 2500 Vrms | Vrms | For 1 minute per UL 1577 |
Key Features
- High-Speed Data Transfer: Supports data rates up to 25 Mbps.
- Voltage Translation: Operates with 3.3 V or 5 V supply voltages on either side, enabling voltage translation across the isolation barrier.
- Low Power Consumption: Consumes one-tenth to one-sixth the power of optocouplers at comparable signal data rates.
- High Common-Mode Transient Immunity: Offers >25 kV/μs common-mode transient immunity.
- Automotive Grade: The ADuM3210W and ADuM3211W models are qualified for 125°C operation and meet automotive quality and reliability requirements.
- Regulatory Approvals: UL recognition for 2500 Vrms for 1 minute per UL 1577, CSA Component Acceptance Notice #5A, and VDE Certificate of Conformity.
- Precise Timing Characteristics: Features low pulse-width distortion and precise channel matching.
Applications
- Size-Critical Multichannel Isolation: Ideal for applications where space is limited.
- SPI Interface/Data Converter Isolation: Suitable for isolating SPI interfaces and data converters.
- RS-232/RS-422/RS-485 Transceiver Isolation: Used in serial communication interfaces.
- Digital Field Bus Isolation: Applicable in various industrial field bus systems.
- Gate Drive Interfaces: Used in power electronics and motor control systems.
- Hybrid Electric Vehicles and Battery Monitors: Suitable for automotive and battery management systems.
Q & A
- What is the ADuM3210WBRZ-RL7 used for?
The ADuM3210WBRZ-RL7 is a dual-channel digital isolator used for isolating digital signals in various applications, including industrial, automotive, and communication systems.
- What are the key advantages of the ADuM3210WBRZ-RL7 over optocouplers?
The ADuM3210WBRZ-RL7 offers superior performance with stable and precise timing characteristics, lower power consumption, and higher common-mode transient immunity compared to optocouplers.
- What are the supported data rates for the ADuM3210WBRZ-RL7?
The ADuM3210WBRZ-RL7 supports data rates up to 25 Mbps.
- What are the supply voltage requirements for the ADuM3210WBRZ-RL7?
The component operates with supply voltages ranging from 2.7 V to 3.6 V and 4.5 V to 5.5 V on either side.
- Is the ADuM3210WBRZ-RL7 suitable for automotive applications?
Yes, the ADuM3210W model is qualified for 125°C operation and meets automotive quality and reliability requirements.
- What is the common-mode transient immunity of the ADuM3210WBRZ-RL7?
The ADuM3210WBRZ-RL7 offers >25 kV/μs common-mode transient immunity.
- Does the ADuM3210WBRZ-RL7 have any regulatory approvals?
Yes, it has UL recognition for 2500 Vrms for 1 minute per UL 1577, CSA Component Acceptance Notice #5A, and VDE Certificate of Conformity.
- How does the ADuM3210WBRZ-RL7 handle pulse-width distortion?
The component features low pulse-width distortion, with a maximum of 3 ns at 5 V operation.
- What is the operating temperature range of the ADuM3210WBRZ-RL7?
The operating temperature range is from -40°C to +105°C.
- Can the ADuM3210WBRZ-RL7 be used in high-speed applications?
Yes, it is suitable for high-speed applications due to its low propagation delay and precise timing characteristics.
