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ADUM1281CRZ

Name: ADUM1281CRZ
Rating: 4.7 (12 reviews)

DGTL ISOLTR 3KV 2CH GP 8-SOIC

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資料表 ADUM1281CRZ DataSheet
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規格

Series	iCoupler®
Part Status	Active
Technology	Magnetic Coupling
Type	General Purpose
Isolated Power	No
Number of Channels	2
Inputs - Side 1/Side 2	1/1
Channel Type	Unidirectional
Voltage - Isolation	3000Vrms
Common Mode Transient Immunity (Min)	25kV/µs
Data Rate	100Mbps
Propagation Delay tpLH / tpHL (Max)	24ns, 24ns
Pulse Width Distortion (Max)	2ns
Rise / Fall Time (Typ)	2.5ns, 2.5ns
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	ADUM1281

概述

Description

The ADUM1281CRZ is a digital isolator designed by Analog Devices, featuring a robust isolation barrier. It utilizes capacitive isolation technology, providing high-speed data transfer while maintaining electrical isolation between its input and output sides. This device operates with a supply voltage range of 3V to 5.5V and supports data rates up to 1 Mbps.
The ADUM1281CRZ is particularly useful in applications requiring signal integrity and safety, such as industrial automation, medical devices, and communication systems. Its isolation voltage rating is up to 5 kV, ensuring reliable operation in harsh environments. The device also features a small footprint, making it suitable for space-constrained designs.
In summary, the ADUM1281CRZ is a versatile digital isolator offering high performance, safety, and reliability for various electronic applications.

Features

The ADUM1281CRZ is a digital isolator from Analog Devices, designed for high-speed data communication in industrial and medical applications. Key features include:
1. Isolation Voltage: Provides a maximum isolation voltage of 2.5 kV.
2. Data Rate: Supports data rates up to 1 Mbps.
3. Number of Channels: It has 1 channel for unidirectional data transmission.
4. Low Power Consumption: Operates with low supply current, enhancing energy efficiency.
5. Wide Supply Voltage Range: Compatible with supply voltages from 3.0 V to 5.5 V.
6. High Noise Immunity: Features a high degree of common-mode rejection (CMR).
7. Temperature Range: Operates effectively over the -40°C to +125°C temperature range.
8. Small Package: Available in a compact 8-lead SOIC package.
These features make the ADUM1281CRZ suitable for applications requiring robust signal integrity and electrical isolation, such as communication interfaces and power management systems.

Package

The ADUM1281CRZ is packaged in a 16-lead LFCSP (Lead Frame Chip Scale Package) with a RoHS-compliant, thermal pad design. This compact package is designed for enhanced thermal performance and reduced footprint.

Pinout

The ADUM1281CRZ is an isolated digital isolator with a pin count of 16. It is designed to provide data communication across isolation barriers while maintaining high-speed performance and low power consumption.
The main functions of its pins include:
- Data Channels: The device features two independent digital input/output channels (typically labeled as D0 and D1) that facilitate bidirectional data transfer.
- Power Supply Pins: It has separate power pins for the input (VDD1) and output (VDD2) sides, allowing for different voltage levels.
- Ground Pins: There are dedicated ground pins (GND1 and GND2) for each side of the isolation barrier.
- Isolation Barrier: The device supports an isolation voltage of up to 5 kV, allowing safe separation of circuits.
- Fail-Safe Features: It includes built-in fail-safe protection against faults.
Overall, the ADUM1281CRZ is commonly used in applications requiring robust isolation between digital systems, such as in industrial control and automotive systems.

Manufacturer

The ADUM1281CRZ is manufactured by Analog Devices, Inc. (ADI), a multinational semiconductor company headquartered in Norwood, Massachusetts, USA. Analog Devices specializes in the design, manufacturing, and marketing of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company serves a variety of markets, including industrial automation, automotive, communications, healthcare, and consumer electronics. ADI is known for its innovations in signal processing technology, enabling precise data conversion and transmission in electronic systems.

Application

The ADUM1281CRZ is a digital isolator used in various applications, including industrial automation, medical devices, power supplies, and data communications. It provides galvanic isolation to protect sensitive components from high voltages and noise, ensuring signal integrity in environments with electromagnetic interference. Its versatility makes it suitable for use in fieldbus systems, servo drives, and mixed-signal systems where signal isolation is critical.

Equivalent

Equivalent products to the ADUM1281CRZ chip include the Texas Instruments ISO7221, Analog Devices ADM2483, and the Silicon Labs Si86xx series. These chips provide similar isolation and communication capabilities, suitable for isolating digital signals in various applications. Always verify specific features and compatibility for your use case.