This document introduces Analog Devices' new portfolio of SPI digital isolators based on their iCoupler digital isolator technology. It provides an overview of Analog Devices' dedicated SPI isolator products, including small package sizes, multiple slave control and high speed operation. It also summarizes the benefits of migrating from optocoupler-based or discrete component-based SPI isolation solutions to Analog Devices' SPI isolator integrated circuits.
SPIsolator Dedicated Digital Isolator for SPI Communications
1. The World Leader in High Performance Signal Processing Solutions
Dedicated Digital
Isolator for SPI Communications
Based on iCoupler® Digital Isolator Technology
www.analog.com/SPIsolator
June 2014
®
2. ADI has your SPI Bus Covered with a New
Portfolio of SPI Digital Isolators
2 www.analog.com/SPIsolator
3. Dedicated SPI Isolators
Small Footprint, Simple Design, Fast Speed, High Data Integrity
Small Package
20-lead SSOP with 3.75kV Isolation rating
Multiple Slave Control Options
High Speed (Up to 40MHz)
Low Propagation Delay
Extended Temperature Range to 125°C
Proven iCoupler Isolation (>1 Billion Channels Shipped)
UL, CSA, VDE regulatory approvals (Pending)
Serves Variety of Applications
Control (PLC, Automotive, etc.)
High Data Integrity; Multiple Slaves; Auxiliary Data Lines
Sensor Monitoring (Instrumentation, Motor Control, etc.)
High Data Rates; Tight Timing Control; Single Slave; Auxiliary Data Lines
3 www.analog.com/SPIsolator
7. ADuM3150 SPI Digital Isolator
Enables High Bus Speed
www.analog.com/SPIsolator
Supports up to 40MHz SPI Clock
Delayed SCLK generated by SPIsolator based on SCLK
Factory calibrated
Requires additional MCU register
Standard SPI port or GPIOs + shift register
Fastest systems today perform this function discretely
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8. ADuM3151/2/3 SPI Digital Isolator
Functional Integration Reduces Size and Cost
Supports 17MHz Clock
3 Auxiliary Low-Speed Channels
Integrates isolation of auxiliary/control signals
www.analog.com/SPIsolator8
9. ADuM3154 SPI Digital Isolator
Quad Slave Select Feature Simplifies Board Layout
Supports 17MHz Clock
4 Slave Select Lines
2 Pins to Address the Slave Select Mux on Slave Side
Slave Select gated by fast SS channel for accurate timing
www.analog.com/SPIsolator9
11. Compatible with All SPI Converters
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For more information on our precision converter products, visit: www.analog.com/adc
ADC Model
Resolution
(Bits)
ADC
Sample Rate
(Msps)
SPIsolator
Throughput
(Msps)
AD7984 18 1.33 1.05
AD7982 18 1.00 0.86
AD7690 18 0.40 0.39
AD7691* 18 0.25 0.25
AD7983 16 1.33 1.11
AD7980 16 1.00 0.90
AD7902 16 1.00 0.90
AD7903 16 1.00 0.90
AD7693* 16 0.50 0.50
AD7699* 16 0.50 0.50
AD7606-4* 16 0.20 0.20
AD7091R* 12 1.00 1.00
AD7091R-2* 12 1.00 1.00
AD7091R-4* 12 1.00 1.00
AD7091R-8* 12 1.00 1.00
Here are the latest 12-bit to 18-bit Precision ADCs
* Maximum ADC Throughput Supported
12. SPIsolator™ Family Resources
www.analog.com/SPIsolator
Training Video
Evaluation Boards
EVAL-ADUM3150Z
EVAL-ADUM3151Z
EVAL-ADUM3154Z
Product Data Sheets
•ADuM3150
•ADuM3151/2/3
•ADuM3154
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• Access to all data channels
• Multiple Connection Options
• Support forTektronixActive Probes
• Provision for cable terminations
• Support for PCB edge mounted coax connectors
• Easy Configuration
Evaluate for
$49 USD
13. Learn More About iCoupler Digital Isolators
www.analog.com/iCoupler
Resources Include:
Webcast and Training videos
Interface and Isolation Newsletter Archives and Subscription Link
Circuits from the Lab™
Application Notes
Technical Articles
Digital Isolator Product Selector Guide
Regulatory Agency Certifications
Datasheets
Evaluation Boards
And Much More!
www.analog.com/SPIsolator13