Overview
The ADUM1210BRZ from Analog Devices Inc. is a dual-channel digital isolator based on Analog Devices' iCoupler® technology. This component combines high-speed CMOS and monolithic transformer technology to provide superior performance compared to traditional optocoupler devices. It eliminates issues such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects associated with optocouplers. The ADUM1210BRZ is designed for high reliability and stability, making it suitable for various critical isolation applications.
Key Specifications
Parameter | Value | Unit | Notes |
---|---|---|---|
Number of Channels | 2 | - | Dual-channel isolator |
Maximum Data Rate | 10 Mbps | - | - |
Maximum Propagation Delay | 50 ns | - | At 5V |
Maximum Pulse Width Distortion | 3 ns | - | - |
Common-Mode Transient Immunity | 35 kV/μs | - | Typical |
Operating Temperature | -40°C to +105°C | - | - |
Package Style | 8-lead SOIC-N | - | - |
Voltage Isolation | 2500 Vrms | - | UL recognition for 1 minute per UL 1577 |
Supply Voltage | 2.7 V to 5.5 V | - | Both VDD1 and VDD2 |
Pin Count | 8 | - | - |
Key Features
- High-Speed CMOS and Monolithic Transformer Technology: Combines to provide superior performance and stability compared to optocouplers.
- Low Power Operation: Low quiescent current per channel, with maximum currents of 1.1 mA per channel at 5V and 0.8 mA per channel at 3V for data rates up to 2 Mbps.
- RoHS Compliance: The device is RoHS-compliant, ensuring it meets environmental standards by being lead-free.
- High Common-Mode Transient Immunity: Provides 35 kV/μs typical immunity, ensuring robust performance in noisy environments.
- Wide Operating Temperature Range: Operates from -40°C to +105°C, making it suitable for a variety of applications.
- Refresh Feature: Ensures DC correctness in the absence of input logic transitions and during power-up/power-down conditions.
- Default Output State: Outputs default to a logic low state when input power is off, unlike some other models that default to high.
Applications
- Size-Critical Multichannel Isolation: Ideal for applications where space is limited but multiple channels of isolation are required.
- SPI Interface/Data Converter Isolation: Suitable for isolating SPI interfaces and data converters in various systems.
- RS-232/RS-422/RS-485 Transceiver Isolation: Used in serial communication systems to ensure signal integrity and isolation.
- Digital Field Bus Isolation: Applies to field bus systems requiring reliable and isolated digital communication.
- Gate Drive Interface: Used in power electronics to isolate gate drive signals from the rest of the system.
Q & A
- What is the ADUM1210BRZ based on?
The ADUM1210BRZ is based on Analog Devices' iCoupler® technology, which combines high-speed CMOS and monolithic transformer technology.
- What are the key advantages of the ADUM1210BRZ over optocouplers?
The ADUM1210BRZ eliminates issues such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects associated with optocouplers.
- What is the maximum data rate of the ADUM1210BRZ?
The maximum data rate is 10 Mbps.
- What is the operating temperature range of the ADUM1210BRZ?
The operating temperature range is -40°C to +105°C.
- What is the voltage isolation rating of the ADUM1210BRZ?
The voltage isolation rating is 2500 Vrms, with UL recognition for 1 minute per UL 1577.
- Is the ADUM1210BRZ RoHS-compliant?
Yes, the ADUM1210BRZ is RoHS-compliant and lead-free.
- What is the package style of the ADUM1210BRZ?
The package style is an 8-lead SOIC-N.
- What are some common applications of the ADUM1210BRZ?
Common applications include size-critical multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceiver isolation, digital field bus isolation, and gate drive interface.
- How does the ADUM1210BRZ handle power-up/power-down conditions?
The ADUM1210BRZ has a refresh feature that ensures DC correctness in the absence of input logic transitions and during power-up/power-down conditions. Outputs default to a logic low state when input power is off.
- What is the common-mode transient immunity of the ADUM1210BRZ?
The common-mode transient immunity is 35 kV/μs typical.