Overview
The ADUM3481ARSZ is a quad-channel digital isolator produced by Analog Devices Inc., utilizing the proprietary iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technology to provide superior performance characteristics compared to optocoupler devices and other integrated couplers. It is designed for high-speed data transfer with low propagation delay and high common-mode transient immunity, making it suitable for a variety of industrial and general-purpose isolation applications.
Key Specifications
| Parameter | Symbol | Typical Value | Minimum Value | Maximum Value | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Data Rate | - | 25 Mbps | - | - | Mbps | Within PWD limit |
| Propagation Delay | tPHL, tPLH | 25 ns | 65 ns | 90 ns | ns | 50% input to 50% output |
| Supply Voltage | VDDL1, VDD1, VDDL2, VDD2 | 5 V | 4.5 V | 5.5 V | V | - |
| Quiescent Supply Current (Input Side) | IDDI (Q) | 0.50 mA | - | 0.60 mA | mA | - |
| Dynamic Supply Current (Input Side) | IDDI (D) | 0.070 mA/Mbps | - | - | mA/Mbps | - |
| Common-Mode Transient Immunity | |CM| | 25 kV/µs | - | 35 kV/µs | kV/µs | VIx = VDDLx, VCM = 1000 V, transient magnitude = 800 V |
| Output Rise/Fall Time | tR/tF | 2.5 ns | - | - | ns | 10% to 90% |
| Package Type | - | - | - | - | 20-lead SSOP | - |
| Operating Temperature | TA | - | -40°C | 125°C | °C | - |
Key Features
- Up to 25 Mbps data rate (NRZ)
- Low propagation delay: 25 ns typical
- Low dynamic power consumption
- 1.8 V to 5 V level translation
- High temperature operation: up to 125°C
- High common-mode transient immunity: >25 kV/µs
- Output default select
- RoHS-compliant, 20-lead SSOP package
- Safety and regulatory approvals: UL recognition, CSA Component Acceptance Notice #5A, VDE certificate of conformity
Applications
- General-purpose multichannel isolation
- SPI interface/data converter isolation
- Industrial field bus isolation
Q & A
- What is the ADUM3481ARSZ used for? The ADUM3481ARSZ is used for general-purpose multichannel isolation, SPI interface/data converter isolation, and industrial field bus isolation.
- What is the data rate of the ADUM3481ARSZ? The ADUM3481ARSZ has a data rate of up to 25 Mbps.
- What is the typical propagation delay of the ADUM3481ARSZ? The typical propagation delay is 25 ns.
- What are the operating voltage ranges for the ADUM3481ARSZ? The operating voltage ranges are 1.8 V to 5 V.
- Is the ADUM3481ARSZ RoHS-compliant? Yes, the ADUM3481ARSZ is RoHS-compliant.
- What is the package type of the ADUM3481ARSZ? The package type is a 20-lead SSOP.
- What are the safety and regulatory approvals for the ADUM3481ARSZ? It has UL recognition, CSA Component Acceptance Notice #5A, and VDE certificate of conformity.
- What is the common-mode transient immunity of the ADUM3481ARSZ? The common-mode transient immunity is >25 kV/µs.
- What is the maximum operating temperature for the ADUM3481ARSZ? The maximum operating temperature is 125°C.
- Does the ADUM3481ARSZ support level translation? Yes, it supports level translation from 1.8 V to 5 V.
