Overview
The ADUM4402ARWZ is a 4-channel digital isolator produced by Analog Devices Inc., utilizing the company's proprietary iCoupler technology. This component combines high-speed CMOS and monolithic air core transformer technology to provide superior isolation performance compared to traditional optocouplers and other integrated couplers. The ADUM4402ARWZ operates with supply voltages ranging from 3.0 V to 5.5 V on both sides, enabling compatibility with lower voltage systems and voltage translation across the isolation barrier. It features a patented refresh mechanism to ensure DC correctness during power-up/power-down and in the absence of input logic transitions, making it highly reliable for various applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Data Rate | - | 1 | 10 | 90 | Mbps | Within PWD limit |
| Propagation Delay | tPHL, tPLH | 18 | 27 | 32 | ns | 50% input to 50% output |
| Pulse Width Distortion | PWD | 0.5 | 2 | 3 | ns | |tPLH − tPHL| |
| Supply Current (IDD1) | - | 2.0 | 2.8 | 6.0 | mA | - |
| Supply Current (IDD2) | - | 2.0 | 2.8 | 6.0 | mA | - |
| Logic High Input Threshold | VIH | 2.0 | - | - | V | - |
| Logic Low Input Threshold | VIL | 0.8 | - | - | V | - |
| Logic High Output Voltage | VOH | VDDx − 0.1 | - | 5.0 | V | IOx = −20 µA, VIx = VIxH |
| Logic Low Output Voltage | VOL | 0.0 | - | 0.1 | V | IOx = 20 µA, VIx = VIxL |
Key Features
- Four independent isolation channels with various channel configurations and data rates.
- Operates with supply voltages from 3.0 V to 5.5 V, enabling voltage translation across the isolation barrier.
- Patented refresh feature to ensure DC correctness during power-up/power-down and in the absence of input logic transitions.
- Low power consumption, consuming one-tenth to one-sixth the power of comparable isolators.
- High-speed CMOS and monolithic air core transformer technology for superior performance.
- Common-mode transient immunity up to 25 kV/µs.
Applications
- Medical equipment: Ensures safe and reliable isolation in medical devices.
- Motor drives: Provides isolation for motor control systems.
- Power supplies: Used in power supply designs to ensure isolation between different voltage domains.
- Automotive interfaces: Suitable for automotive communication protocols such as CAN, Ethernet, and more.
- Industrial I/O: Used in industrial control systems for reliable data transmission.
Q & A
- What is the ADUM4402ARWZ used for?
The ADUM4402ARWZ is a 4-channel digital isolator used to provide electrical isolation between different parts of a system while maintaining high-speed data transmission. - What are the operating voltage ranges for the ADUM4402ARWZ?
The ADUM4402ARWZ operates with supply voltages ranging from 3.0 V to 5.5 V on both sides. - What is the maximum data rate of the ADUM4402ARWZ?
The maximum data rate is 90 Mbps. - What is the propagation delay of the ADUM4402ARWZ?
The propagation delay (tPHL, tPLH) is typically 27 ns. - Does the ADUM4402ARWZ have any special features for ensuring DC correctness?
Yes, it features a patented refresh mechanism to ensure DC correctness during power-up/power-down and in the absence of input logic transitions. - What is the common-mode transient immunity of the ADUM4402ARWZ?
The common-mode transient immunity is up to 25 kV/µs. - What are some typical applications of the ADUM4402ARWZ?
Typical applications include medical equipment, motor drives, power supplies, automotive interfaces, and industrial I/O systems. - How does the ADUM4402ARWZ compare to other isolation technologies?
The ADUM4402ARWZ offers superior performance compared to traditional optocouplers and other integrated couplers, with lower power consumption and higher speed. - What is the package type of the ADUM4402ARWZ?
The ADUM4402ARWZ is available in a SOIC-16 package. - Is the ADUM4402ARWZ RoHS compliant?
Yes, the ADUM4402ARWZ is RoHS compliant.
