ADUM1250WSRZ

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ADUM1250WSRZ

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DGTL ISOLTR 2.5KV 2CH I2C 8-SOIC

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Especificações

Atributo Valor
Part Status Active
Technology Magnetic Coupling
Type I2C
Isolated Power No
Number of Channels 2
Inputs - Side 1 / Side 2 2/2
Channel Type Bidirectional
Voltage - Isolation 2500Vrms
Common Mode Transient Immunity (Min) 25kV/µs
Data Rate 1Mbps
Pulse Width Distortion (Max) 145ns, 85ns
Rise / Fall Time (Typ) 26ns, 52ns
Voltage - Supply 3V ~ 5.5V
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number ADUM1250
Grade Automotive

Visão Geral

Description

The ADUM1250WSRZ is a digital isolator manufactured by Analog Devices. It is primarily designed to provide robust electrical isolation between two circuits while allowing I2C or SMBus communication across the isolation barrier. This component is particularly useful in systems where safety and signal integrity are crucial, such as industrial automation, medical devices, and power management systems.
Key features of the ADUM1250WSRZ include:
- Bidirectional communication compatibility with I2C interfaces.
- High data rate support, usually up to a few megabits per second.
- Isolation rating, which typically ensures protection against high voltages, improving device reliability and safety.
- Low power consumption, enhancing efficiency in energy-sensitive applications.
- Compact design, facilitating easy integration into various circuit layouts.
Overall, the ADUM1250WSRZ is a versatile solution for designers looking to maintain communication integrity and safety across isolated sections of their electronic systems.

Equivalent

The ADuM1250WSRZ is a digital isolator from Analog Devices. Equivalent products include:
1. Texas Instruments ISO1540: Isolated I2C Bus Repeater
2. Silicon Labs Si860x: I2C Isolators
3. Broadcom ACNU-4300: Optocoupler-based I2C isolator
These are alternatives but may differ in specifications like data rate, package type, or isolation voltage. Always check the datasheets to ensure compatibility with your specific requirements.

Features

The ADUM1250WSRZ is a digital isolator designed for applications requiring bidirectional communication between different voltage levels. Key features include:
1. Isolation Technology: Utilizes Analog Devices' iCoupler® technology to achieve isolation, ensuring robust data transfer across an isolation barrier.
2. Channel Configuration: Offers two bidirectional channels suitable for I²C interfaces and similar protocols.
3. Isolation Voltage: Provides a high isolation voltage rating, typically around 2.5 kV RMS, ensuring safety and signal integrity.
4. Data Rate: Supports data rates up to 1 Mbps, making it suitable for high-speed communication applications.
5. Low Power Consumption: Operates efficiently with low power requirements, which is beneficial for battery-powered and portable devices.
6. Wide Supply Voltage Range: Compatible with a wide range of supply voltages, typically from 3.0 V to 5.5 V.
7. Temperature Range: Designed to operate over an extended temperature range, suitable for industrial and automotive environments.
8. Compact Package: Available in a small form-factor surface-mount package, facilitating easy integration into PCB designs.
These features make the ADUM1250WSRZ ideal for isolating communication lines in mixed-signal environments.

Pinout

The ADUM1250WSRZ is an I2C isolator manufactured by Analog Devices. It comes in an 8-lead SOIC (Small Outline Integrated Circuit) package. The device's primary function is to provide digital isolation for the I2C bus, allowing for the isolation of the SDA and SCL lines between two I2C buses. This isolation helps protect components from high-voltage differences and noise, enabling robust communication in systems where parts of the circuit operate at different voltage levels or are physically separated.
The pin count for the ADUM1250WSRZ is 8 pins, which are typically configured for the following functions: two power supply pins (VDD1 and VDD2), two ground pins (GND1 and GND2), two I2C bus data lines (SDA1 and SDA2), and two clock lines (SCL1 and SCL2). These pins facilitate the dual-channel bidirectional communication necessary for I2C protocols while maintaining electrical isolation between the two sides of the device.

Manufacturer

The ADUM1250WSRZ is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in electronic equipment. The company is known for providing solutions in various sectors, including industrial, automotive, communications, consumer, and healthcare. Analog Devices is recognized for its innovation in designing components that are integral to the operation of numerous electronic systems and devices around the world.

Application

The ADUM1250WSRZ is a dual-channel digital isolator used primarily in applications requiring isolation between two systems. Key application areas include:
1. Industrial Automation: Provides isolation in communication interfaces for process control and factory automation.
2. Power Supplies: Isolates control signals in switch-mode power supplies.
3. Medical Equipment: Ensures patient safety by isolating data connections.
4. Data Acquisition Systems: Protects data converters and microcontrollers from ground loops.
5. Communication Systems: Used in isolated I2C interfaces for robust data transmission.
These applications benefit from its ability to withstand high voltage transients and provide reliable isolation while maintaining high data rates.

Package

The ADUM1250WSRZ is a digital isolator from Analog Devices, and it typically comes in an 8-lead SOIC (Small Outline Integrated Circuit) package, specifically designated with the "SR" suffix, indicating a wide-body package for surface-mount applications.

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