Overview
The ADUM3481BRSZ is a quad-channel digital isolator produced by Analog Devices Inc., utilizing the company's 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 isolation applications.
Key Specifications
| Parameter | Symbol | Typical | Minimum | Maximum | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Data Rate | - | 25 | - | - | Mbps | NRZ signal |
| Propagation Delay | tPHL, tPLH | 25 | 65 | 90 | ns | 50% input to 50% output |
| Supply Voltage | VDD | - | 1.8 | 5.5 | V | Recommended operating range |
| Operating Temperature | TA | - | -40 | 125 | °C | Recommended operating range |
| Common-Mode Transient Immunity | |CM| | 25 | - | - | kV/µs | Transient magnitude = 800 V |
| Package Type | - | - | - | - | 20-lead SSOP | - |
| Isolation Voltage | - | - | - | - | 3.75 kV RMS | UL recognition: 3750 V rms for 1 minute per UL 1577 |
Key Features
- High-speed data transfer up to 25 Mbps (NRZ signal)
- Low propagation delay of 25 ns typical
- Low dynamic power consumption
- 1.8 V to 5 V level translation
- High common-mode transient immunity of >25 kV/µs
- Output default select feature
- Operating temperature range from -40°C to +125°C
- 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
- Other applications requiring high-speed digital isolation
Q & A
- What is the ADUM3481BRSZ used for?
The ADUM3481BRSZ is a quad-channel digital isolator used for general-purpose multichannel isolation, SPI interface/data converter isolation, and industrial field bus isolation, among other applications requiring high-speed digital isolation.
- What is the maximum data rate of the ADUM3481BRSZ?
The maximum data rate of the ADUM3481BRSZ is 25 Mbps (NRZ signal).
- What is the typical propagation delay of the ADUM3481BRSZ?
The typical propagation delay of the ADUM3481BRSZ is 25 ns.
- What is the operating temperature range of the ADUM3481BRSZ?
The operating temperature range of the ADUM3481BRSZ is from -40°C to +125°C.
- What is the isolation voltage rating of the ADUM3481BRSZ?
The ADUM3481BRSZ has an isolation voltage rating of 3.75 kV RMS and is recognized by UL for 3750 V rms for 1 minute per UL 1577.
- What package type is the ADUM3481BRSZ available in?
The ADUM3481BRSZ is available in a 20-lead SSOP package.
- Is the ADUM3481BRSZ RoHS-compliant?
Yes, the ADUM3481BRSZ is RoHS-compliant.
- What are the safety and regulatory approvals for the ADUM3481BRSZ?
The ADUM3481BRSZ has safety and regulatory approvals including UL recognition, CSA Component Acceptance Notice #5A, and VDE certificate of conformity.
- What is the common-mode transient immunity of the ADUM3481BRSZ?
The common-mode transient immunity of the ADUM3481BRSZ is >25 kV/µs.
- Does the ADUM3481BRSZ support level translation?
Yes, the ADUM3481BRSZ supports level translation from 1.8 V to 5 V.
