ADUM4154ARIZ-RL

Digital Isolator CMOS 7CH 1MHz 20Pin SOIC W T/R

Product Details

The ADuM4154 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.

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.

**Applications**

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Industrial programmable logic controllers PLCs

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Sensor isolation

### Features and Benefits

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Supports up to 17 MHz SPI clock speed

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4 high speed, low propagation delay, SPI signal isolation channels

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Supports up to 4 slave devices

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20-lead SOIC_IC package with 8.3 mm creepage

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High temperature operation: 125°C

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High common-mode transient immunity: >25 kV/μs

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Safety and regulatory approvals

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UL recognition per UL 1577

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5000 V rms for 1 minute SOIC long package

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CSA Component Acceptance Notice 5A

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VDE certificate of conformity

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DIN V VDE V 0884-10 VDE V 0884-10:2006-12

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VIORM = 849 V peak