Overview
The ADUM4402ARIZ-RL 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 optocouplers and other integrated couplers. The ADUM4402ARIZ-RL is designed to operate with supply voltages ranging from 3.0 V to 5.5 V on both sides, enabling voltage translation across the isolation barrier and compatibility with lower voltage systems. It features a patented refresh mechanism to ensure DC correctness during power-up/power-down and in the absence of input logic transitions.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Supply Voltage | VDDx | 3.0 | - | 5.5 | V | - |
| Logic High Input Threshold | VIH | 2.0 | - | - | V | - |
| Logic Low Input Threshold | VIL | - | - | 0.8 | V | - |
| Logic High Output Voltage | VOH | VDDx - 0.1 | - | VDDx - 0.4 | V | IOx = -20 µA, VIx = VIxH |
| Logic Low Output Voltage | VOL | 0.0 | - | 0.1 | V | IOx = 20 µA, VIx = VIxL |
| Supply Current (IDD1) | - | 2.0 | 2.8 | 6.0 | mA | - |
| Supply Current (IDD2) | - | 1.2 | 1.7 | 3.3 | mA | - |
| Output Rise/Fall Time | tR/tF | - | - | 2.5 ns | - | 10% to 90% |
| Common-Mode Transient Immunity | |CM| | - | - | 25 kV/µs | - | VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V |
| Package Type | - | - | - | - | 16-SOIC (0.295", 7.50mm Width) | - |
Key Features
- Four independent isolation channels with data rates up to 1 Mbps.
- 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, with IDD1 and IDD2 currents significantly lower than comparable isolators.
- High common-mode transient immunity (CMTI) of 25 kV/µs.
- Output rise/fall times as low as 2.5 ns.
- 16-SOIC package for compact design.
Applications
- Medical equipment: Ensures safe and reliable isolation in medical devices.
- Motor drives: Provides high-speed data transfer and isolation in motor control systems.
- Power supplies: Used for isolated feedback and control in power supply designs.
- Industrial automation: Suitable for various industrial applications requiring high-speed data isolation.
- Automotive systems: Can be used in automotive interfaces and control systems where isolation is critical.
Q & A
- What is the ADUM4402ARIZ-RL used for? The ADUM4402ARIZ-RL is a 4-channel digital isolator used to provide electrical isolation and high-speed data transfer in various applications.
- What are the operating voltage ranges for the ADUM4402ARIZ-RL? The component operates with supply voltages ranging from 3.0 V to 5.5 V on both sides.
- What is the maximum data rate of the ADUM4402ARIZ-RL? The maximum data rate is up to 1 Mbps.
- What is the common-mode transient immunity (CMTI) of the ADUM4402ARIZ-RL? The CMTI is 25 kV/µs.
- What package type does the ADUM4402ARIZ-RL come in? It comes in a 16-SOIC package.
- How does the ADUM4402ARIZ-RL ensure DC correctness? It features a patented refresh mechanism to ensure DC correctness during power-up/power-down and in the absence of input logic transitions.
- What are some typical applications of the ADUM4402ARIZ-RL? Typical applications include medical equipment, motor drives, power supplies, industrial automation, and automotive systems.
- What is the output rise/fall time of the ADUM4402ARIZ-RL? The output rise/fall time is as low as 2.5 ns.
- How does the ADUM4402ARIZ-RL compare to other isolators in terms of power consumption? It consumes significantly less power compared to other isolators at comparable data rates.
- Is the ADUM4402ARIZ-RL RoHS compliant? Yes, the ADUM4402ARIZ-RL is RoHS compliant.
