Overview
The ADUM1281BRZ-RL7 is a 3kV RMS dual-channel digital isolator manufactured by Analog Devices Inc. This component utilizes Analog Devices' iCoupler technology, which combines high-speed CMOS and monolithic air core transformer technology to provide superior performance characteristics compared to optocoupler devices and other integrated couplers. The ADUM1281BRZ-RL7 is designed to ensure DC correctness in the absence of input logic transitions through a patented refresh feature. It operates over a wide temperature range from -40°C to 125°C and supports voltage levels from 3.3V to 5V, making it versatile for various applications.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | ADUM1281BRZ-RL7 |
| Package | SOIC-8 |
| Number of Pins | 8 |
| Number of Channels | 2 |
| Min Supply Voltage | 3.135V |
| Max Supply Voltage | 5.5V |
| Data Rate | Up to 100 Mbps (NRZ) |
| Propagation Delay | 23 ns typical, 35 ns maximum |
| Operating Temperature | -40°C to 125°C |
| Mount | Surface Mount |
| RoHS Compliance | Yes |
| High Common-Mode Transient Immunity | >25 kV/μs |
Key Features
- Bidirectional Communication: Supports bidirectional data transfer between isolated sides.
- Low Dynamic Power Consumption: Efficient power usage, reducing overall system power requirements.
- High Common-Mode Transient Immunity: Greater than 25 kV/μs, ensuring robust performance in noisy environments.
- 3.3V to 5V Level Translation: Compatible with a range of voltage levels, enabling flexibility in system design.
- Default High Output: Ensures a defined output state in the absence of input logic transitions.[
- Patented Refresh Feature: Maintains DC correctness even without input logic transitions.[
Applications
- General-Purpose Multichannel Isolation: Suitable for various isolation needs in multiple channels.[
- Data Converter Isolation: Used in isolating data converters to prevent noise and interference.[
- Industrial Field Bus Isolation: Ideal for isolating industrial field bus systems to ensure reliable communication.[
- Hybrid Electric Vehicles, Battery Monitor, and Motor Drive: Applied in automotive and industrial control systems for safety and reliability.[
Q & A
- What is the ADUM1281BRZ-RL7 used for?
The ADUM1281BRZ-RL7 is a dual-channel digital isolator used for isolating digital signals in various applications, including general-purpose multichannel isolation, data converter isolation, and industrial field bus isolation.
- What is the maximum data rate of the ADUM1281BRZ-RL7?
The maximum data rate of the ADUM1281BRZ-RL7 is up to 100 Mbps (NRZ).
- What is the operating temperature range of the ADUM1281BRZ-RL7?
The operating temperature range is from -40°C to 125°C.
- Is the ADUM1281BRZ-RL7 RoHS compliant?
Yes, the ADUM1281BRZ-RL7 is RoHS compliant.
- What is the package type of the ADUM1281BRZ-RL7?
The package type is SOIC-8.
- Does the ADUM1281BRZ-RL7 support bidirectional communication?
Yes, the ADUM1281BRZ-RL7 supports bidirectional communication.
- What is the high common-mode transient immunity of the ADUM1281BRZ-RL7?
The high common-mode transient immunity is greater than 25 kV/μs.[
- Does the ADUM1281BRZ-RL7 have a patented refresh feature?
Yes, the ADUM1281BRZ-RL7 has a patented refresh feature to ensure DC correctness.[
- What are the safety and regulatory approvals for the ADUM1281BRZ-RL7?
The ADUM1281BRZ-RL7 complies with UL recognition: 3000Vrms for 1 minute per UL 1577, CSA Component Acceptance Notice 5A, VDE Certificate of Conformity, and DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12.[
- Is the ADUM1281BRZ-RL7 suitable for automotive applications?
Yes, the ADUM1281BRZ-RL7 is qualified for automotive applications.[
