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ADuM3151BRSZ-RL7 Datasheet(PDF) 1 Page - Analog Devices |
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ADuM3151BRSZ-RL7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 22 page 3.75 kV, 7-Channel, SPIsolator Digital Isolators for SPI Data Sheet ADuM3151/ADuM3152/ADuM3153 Rev. A Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2014–2015 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Supports up to 17 MHz SPI clock speed 4 high speed, low propagation delay, SPI signal isolation channels Three 250 kbps data channels 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 recognition per UL 1577 3750 V rms for 1 minute CSA Component Acceptance Notice 5A VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 565 V peak APPLICATIONS Industrial programmable logic controllers (PLCs) Sensor isolation GENERAL DESCRIPTION The ADuM3151/ADuM3152/ADuM31531 are 7-channel, SPIsolator™ digital isolators optimized for isolated serial peripheral interfaces (SPIs). Based on the Analog Devices, Inc., iCoupler® chip scale transformer technology, the low propagation delay in the CLK, MO/SI, MI/SO, and SS SPI bus signals supports SPI clock rates of up to 17 MHz. These channels operate with 14 ns propagation delay and 1 ns jitter to optimize timing for SPI. The ADuM3151/ADuM3152/ADuM3153 isolators also provide three additional independent low data rate isolation channels in three different channel direction combinations. Data in the slow channels is sampled and serialized for a 250 kbps data rate with up to 2.5 μs of jitter in the low speed channels. FUNCTIONAL BLOCK DIAGRAMS ENCODE CONTROL BLOCK DECODE DECODE ENCODE ENCODE DECODE ENCODE DECODE VDD1 GND1 MCLK MO MI MSS VIA VIB VOC VDD2 GND2 SCLK SI SO SSS VOA VOB VIC 1 2 3 4 5 6 7 8 20 19 18 17 16 15 14 13 GND1 GND2 9 10 12 11 ADuM3151 CONTROL BLOCK Figure 1. ADuM3151 Functional Block Diagram ENCODE DECODE DECODE ENCODE ENCODE DECODE ENCODE DECODE VDD1 GND1 MCLK MO MI MSS VIA VOB VOC VDD2 GND2 SCLK SI SO SSS VOA VIB VIC 1 2 3 4 5 6 7 8 20 19 18 17 16 15 14 13 GND1 GND2 9 10 12 11 ADuM3152 CONTROL BLOCK CONTROL BLOCK Figure 2. ADuM3152 Functional Block Diagram ENCODE DECODE DECODE ENCODE ENCODE DECODE ENCODE DECODE VDD1 GND1 MCLK MO MI MSS VOA VOB VOC VDD2 GND2 SCLK SI SO SSS VIA VIB VIC 1 2 3 4 5 6 7 8 20 19 18 17 16 15 14 13 GND1 GND2 9 10 12 11 ADuM3153 CONTROL BLOCK CONTROL BLOCK Figure 3. ADuM3153 Functional Block Diagram 1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,262,600; and 7,075,329. Other patents are pending. |
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