ADuM4154 Datasheet PDF | Analog Devices

Analog Devices ADuM4154

The ADuM4154 isolator also provides a slave select multiplexing system that allows up to four slave devices to be serviced from one isolator. When a target slave is selected, the slave select signal propagates to the desired output with low propagation delay, allowing tight timing control. The isolated SSx is addressed through a 250 kbps low speed, 2-channel address bus, allowing the target slave device to be changed in as little as 2.5 µs.

Part No.	ADuM4154
Datasheet	ADuM4154 Download
Manufacturer	Analog Devices
Description	Digital Isolator
Buy	Stock & Price

FEATURES

FUNCTIONAL BLOCK DIAGRAM ► Supports up to 17 MHz SPI clock speed ► 4 high speed, low propagation delay, SPI signal isolation chan- nels ► Supports up to 4 slave devices ► 20-lead SOIC_IC package with 8.3 mm creepage ► High temperature operation: 125°C ► High common-mode transient immunity: >25 kV/µs ► Safety and regulatory approvals ► UL recognition per UL 1577 ► 5000 V rms for 1 minute SOIC long package ► CSA certification per IEC 62368-1, IEC 61010-1, and IEC 60601-1 ► VDE certificate of conformity ► DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 ► VIORM = 849 V peak Figure 1.

APPLICATIONS

► Industrial programmable logic controllers (PLCs) ► Sensor isolation

GENERAL DESCRIPTION

The ADuM41541 is an SPIsolator™ digital isolator optimized for a serial peripheral interface (SPI) that includes support for up to four slave devices. Based on the Analog Devices, Inc., iCoupler® chip scale transformer technology, the low propagation delay and jitter in the CLK, MO/SI, MI/SO, and SS SPI bus signals support SPI clock rates of up to 17 MHz.