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ADUM1251 Datasheet PDF

Part Series:ADUM1251 Series
Category:Interface Isolators
Description:ANALOG DEVICES ADUM1251ARZ Digital Isolator, Dual, 2Channel, 162ns, 3V, 5.5V, SOIC, 8Pins
Document:ADUM1251ARZ-RL7 Datasheet PDF (23 Pages)

ADUM1251ARZ - ADI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
8 Pin
Supply Voltage (DC)
3.00V (min)
Case/Package
SOIC-8
Rise/Fall Time
26ns, 52ns
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ADUM1251ARZ - ADI Function Overview

The ADUM1251ARZ is a hot swappable, dual I2C isolator in 8pin NSOIC package. It is a digital isolator with nonlatching bidirectional communication channels that are compatible with I2C interfaces. This eliminates need for splitting I2C signals into separate transmit and receive signals for use with standalone optocouplers. The ADuM1251 provides one bidirectional channel and one unidirectional channel for applications where bidirectional clock is not required. It contains hot swap circuitry to prevent glitching data when an unpowered card is inserted onto an active bus. This isolator is based on iCoupler chip scale transformer technology from Analog Devices. iCoupler is a magnetic isolation technology with functional performance, size and power consumption advantages as compared to optocouplers. The iCoupler channels can be integrated with semiconductor circuitry which enables complete isolated I2C interface to be implemented in a small form factor.
30mA current sink capability
1000KHz operation
3V to 5.5V supply/logic levels
Maximum data rate of 1Mbps
Maximum propagation delay of 150ns
Open drain interfaces
UL, CSA, VDE and CQC approved
Operating temperature range from -40°C to 105°C
ESD (electrostatic discharge) sensitive device. Proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
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