ADUM3154

PRODUCTION

3.75 kV, 7-Channel, SPIsolator Multiple Slave, Digital Isolator for SPI

Data Sheet (Rev. C) Product Selection Table

Part Models: 4
1ku List Price: Starting From $2.54

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Overview

Supports up to 17 MHz SPI clock speed
4 high speed, low propagation delay, SPI signal isolation channels
Supports up to 4 subordinate devices
20-lead SSOP package with 5.1 mm creepage
High temperature operation: 125°C
High common-mode transient immunity: >25 kV/μs

Safety and regulatory approvals
- UL 1577
  - V_ISO = 3750 V rms for 1 minute
- IEC/EN/CSA 62368-1
- DIN EN IEC 60747-17 (VDE 0884-17)
  - V_IORM = 565 V peak

The ADuM3154¹ is an SPIsolator^™ digital isolator optimized for a serial peripheral interface (SPI) that includes support for up to four subordinate 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 ADuM3154 isolator also provides a subordinate select multiplexing system that allows up to four subordinate devices to be serviced from one isolator. When a target subordinate is selected, the subordinate 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 subordinate device to be changed in as little as 2.5 µs.

Applications

Industrial programmable logic controllers (PLCs)
Sensor isolation

Part Models: 4
1ku List Price: Starting From $2.54

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADUM3154ARSZ	20-Lead SSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUM3154ARSZ-RL7	20-Lead SSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUM3154BRSZ	20-Lead SSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUM3154BRSZ-RL7	20-Lead SSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 27, 2015 - 15_0031 ADuM315x Data Sheet Changes
		PCN15_0031_Form Material_Report Datasheet Specification Comparison
ADUM3154ARSZ	PRODUCTION
ADUM3154ARSZ-RL7	PRODUCTION
ADUM3154BRSZ	PRODUCTION
ADUM3154BRSZ-RL7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

IBIS Model 1

ADuM3154/ADuM4154 IBIS Model

Evaluation Kits

ADUM3154/ADUM4154 Evaluation Board

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Features and Benefits

Access to all four data channels
Access to the slave select address lines
Access to the DCLK delayed clock
Multiple connection options
Support for Tektronix active probes
Provision for cable terminations
Support for PCB edge-mounted coaxial connectors
Easy configuration
Installed SPIsolator® digital isolator: ADuM3154BRSZ in the 20-lead SSOP package

Product Details

The EVAL-ADuM3154Z supports the ADuM3154ARSZ, ADuM3154BRSZ, ADuM4154ARIZ and ADuM4154BRIZ, which are, 4-channel SPIsolator isolators optimized for use in SPI applications. They include two low speed address pins to rout the slave select to one of four destinations. The evaluation board provides a JEDEC standard 20-lead SSOP pad layout, support for signal distribution, loopback, and loads referenced to VDD_x or GND_x, as well as optimal bypass capacitance. Signal sources can be wired onto the board as well as brought onto the board through edge-mounted SMA connectors (sold separately) or terminal blocks for power connections. The board includes 200 mil header positions for compatibility with Tektronix active probes.

The board follows best printed circuit board (PCB) design practices for 4-layer boards, including a full power and ground plane on each side of the isolation barrier. No other EMI or noise mitigation design features are included on this board. In cases of very high speed operation or when ultralow emissions are required, refer to the AN-1109 application note for additional board layout techniques.

Supported SPIsolator Models

ADuM3154ARSZ
ADuM3154BRSZ
ADuM4154ARIZ
ADuM4154BRIZ

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ADUM3154

Overview

Documentation

Data Sheet 1

User Guide 1

Technical Articles 2

Safety and Regulatory Compliance 1

Video 2