ADUM3150 Datasheet, PDF (1/21 Pages) Analog Devices – 3.75 kV, 6-Channel, SPIsolator Digital Isolator for SPI with Delay Clock

Data Sheet
3.75 kV, 6-Channel, SPIsolator Digital
Isolator for SPI with Delay Clock
ADuM3150
FEATURES
Supports up to 40 MHz SPI clock speed in delay clock mode
Supports up to 17 MHz SPI clock speed in 4-wire mode
4 high speed, low propagation delay, SPI signal isolation
channels
2 data channels at 250 kbps
Delayed compensation clock line
20-lead SSOP 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 (PLC)
Sensor isolation
GENERAL DESCRIPTION
The ADuM3150¹ is a 6-channel SPIsolator™ digital isolator
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 ADuM3150 isolator also provides two additional independent
low data rate isolation channels, one channel in each direction.
Data in the slow channels is sampled and serialized for a 250 kbps
data rate with 2.5 µs of jitter.
The ADuM3150 supports a delay clock output on the master
side of the device. This output can be used with an additional
clocked port on the master to support 40 MHz clock performance.
See the Delay Clock section for more information.
FUNCTIONAL BLOCK DIAGRAM
V_DD1 1
GND₁ 2
MCLK 3
MO 4
MI 5
MSS 6
ADuM3150
ENCODE
ENCODE
DECODE
ENCODE
V_IA 7
V_OB 8
CONTROL
BLOCK
DCLK 9
GND₁ 10
CLK
DELAY
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 NIC
11 GND₂
Figure 1.
Table 1. Related Products
Product
Description
ADuM3151/ADuM3152/
ADuM3153
3.75 kV, multichannel SPI isolator
ADuM3154
3.75 kV, multiple slave SPI isolator
ADuM4150
5 kV, high speed, clock delayed
SPIsolator
ADuM4151/ADuM4152/
ADuM4153
5 kV, multichannel SPI isolator
ADuM4154
5 kV, multiple slave SPI isolator
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