ADUM4151 Datasheet, PDF (1/22 Pages) Analog Devices – 5 kV, 7-Channel, SPIsolator Digital Isolators for SPI

Data Sheet
5 kV, 7-Channel,
SPIsolator Digital Isolators for SPI
ADuM4151/ADuM4152/ADuM4153
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 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 Component Acceptance Notice 5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
Maximum working insulation voltage (VIORM): 849 V peak
APPLICATIONS
Industrial programmable logic controllers (PLCs)
Sensor isolation
GENERAL DESCRIPTION
The ADuM4151/ADuM4152/ADuM4153¹ 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 ADuM4151/ADuM4152/ADuM4153 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
V_DD1 1
GND₁ 2
MCLK 3
MO 4
MI 5
MSS 6
ADuM4151
ENCODE
ENCODE
DECODE
ENCODE
V_IA 7
V_IB 8
V_OC 9
CONTROL
BLOCK
GND₁ 10
DECODE
DECODE
ENCODE
DECODE
CONTROL
BLOCK
20 V_DD2
19 GND₂
18 SCLK
17 SI
16 SO
15 SSS
14 V_OA
13 V_OB
12 VIC
11 GND₂
Figure 1. ADuM4151 Functional Block Diagram
V_DD1 1
GND₁ 2
MCLK 3
MO 4
MI 5
MSS 6
ADuM4152
ENCODE
ENCODE
DECODE
ENCODE
V_IA 7
V_OB 8
V_OC 9
CONTROL
BLOCK
GND₁ 10
DECODE
DECODE
ENCODE
DECODE
CONTROL
BLOCK
20 V_DD2
19 GND₂
18 SCLK
17 SI
16 SO
15 SSS
14 V_OA
13 V_IB
12 VIC
11 GND₂
Figure 2. ADuM4152 Functional Block Diagram
V_DD1 1
GND₁ 2
MCLK 3
MO 4
MI 5
MSS 6
ADuM4153
ENCODE
ENCODE
DECODE
ENCODE
V_OA 7
V_OB 8
V_OC 9
CONTROL
BLOCK
GND₁ 10
DECODE
DECODE
ENCODE
DECODE
CONTROL
BLOCK
20 V_DD2
19 GND₂
18 SCLK
17 SI
16 SO
15 SSS
14 V_IA
13 V_IB
12 VIC
11 GND₂
Figure 3. ADuM4153 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.}
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] ©2014–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com