Overview
The ADUM4402ARIZ 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 performance characteristics compared to optocouplers and other integrated couplers. The ADUM4402ARIZ is designed to offer high isolation voltage, low power consumption, and robust common-mode transient immunity, making it suitable for a variety of applications requiring reliable digital signal isolation.
Key Specifications
| Parameter | Symbol | Unit | Test Conditions | Min | Typ | Max |
|---|---|---|---|---|---|---|
| Data Rate | - | Mbps | Within PWD limit | 1 | - | 90 |
| Propagation Delay | tPHL, tPLH | ns | 50% input to 50% output | 18 | 27 | 32 |
| Pulse Width Distortion | PWD | ns | - | 2 | - | 3 |
| Supply Voltage | VDDx | V | - | 3.0 | - | 5.5 |
| Supply Current (IDD1) | - | mA | - | 2.0 | 2.8 | 6.0 |
| Logic High Input Threshold | VIH | V | - | - | 2.0 | - |
| Logic Low Input Threshold | VIL | V | - | - | 0.8 | - |
| Common-Mode Transient Immunity | |CM| | kV/µs | - | 25 | - | 35 |
| Isolation Voltage | - | Vrms | - | - | - | 5000 |
Key Features
- High-Speed Data Transfer: Supports data rates up to 90 Mbps.
- Low Power Consumption: Consumes significantly less power compared to other isolators, with supply currents as low as 2.0 mA.
- Robust Isolation: Provides 5000 Vrms isolation voltage and high common-mode transient immunity (25 kV/µs).
- Voltage Translation: Operates with supply voltages ranging from 3.0 V to 5.5 V, enabling voltage translation across the isolation barrier.
- Refresh Feature: Ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
Applications
- Medical Equipment: Suitable for use in medical devices requiring high isolation and low power consumption.
- Motor Drives: Used in motor drive systems to isolate control signals from power stages.
- Power Supplies: Applied in power supply designs to ensure safe and reliable operation.
- Industrial I/O: Utilized in industrial automation for isolating digital signals in harsh environments.
Q & A
- What is the maximum data rate supported by the ADUM4402ARIZ?
The ADUM4402ARIZ supports data rates up to 90 Mbps. - What is the isolation voltage of the ADUM4402ARIZ?
The isolation voltage is 5000 Vrms. - What is the common-mode transient immunity of the ADUM4402ARIZ?
The common-mode transient immunity is 25 kV/µs. - What is the supply voltage range for the ADUM4402ARIZ?
The supply voltage range is from 3.0 V to 5.5 V. - Does the ADUM4402ARIZ have a refresh feature?
Yes, it has a patented refresh feature to ensure dc correctness. - What are the typical applications of the ADUM4402ARIZ?
It is used in medical equipment, motor drives, power supplies, and industrial I/O. - How many channels does the ADUM4402ARIZ have?
The ADUM4402ARIZ has four independent isolation channels. - What is the package type of the ADUM4402ARIZ?
The package type is 16-SOIC. - What is the propagation delay of the ADUM4402ARIZ?
The propagation delay is typically 27 ns. - Is the ADUM4402ARIZ suitable for low power consumption applications?
Yes, it consumes significantly less power compared to other isolators.
