Dual-Channel Digital Isolators
ADuM1200/ADuM1201
current transfer ratios, nonlinear transfer functions, and temper-
ature and lifetime effects are eliminated with the simple iCoupler
digital interfaces and stable performance characteristics. The need
for external drivers and other discrete components is eliminated
with these iCoupler products. Furthermore, iCoupler devices
consume one-tenth to one-sixth the power of optocouplers at
comparable signal data rates.
Data Sheet
FEATURES
Narrow body, RoHS-compliant, SOIC 8-lead package
Low power operation
5 V operation
1.1 mA per channel maximum @ 0 Mbps to 2 Mbps
3.7 mA per channel maximum @ 10 Mbps
8.2 mA per channel maximum @ 25 Mbps
3 V operation
The ADuM120x isolators provide two independent isolation
channels in a variety of channel configurations and data rates
(see the Ordering Guide). Both parts operate with the supply
voltage on either side ranging from 2.7 V to 5.5 V, providing
compatibility with lower voltage systems as well as enabling a
voltage translation functionality across the isolation barrier.
In addition, the ADuM120x provide low pulse width distortion
(<3 ns for CR grade) and tight channel-to-channel matching
(<3 ns for CR grade). Unlike other optocoupler alternatives,
the ADuM120x isolators have a patented refresh feature that
ensures dc correctness in the absence of input logic transitions
and during power-up/power-down conditions.
0.8 mA per channel maximum @ 0 Mbps to 2 Mbps
2.2 mA per channel maximum @ 10 Mbps
4.8 mA per channel maximum @ 25 Mbps
Bidirectional communication
3 V/5 V level translation
High temperature operation: 125°C
High data rate: dc to 25 Mbps (NRZ)
Precise timing characteristics
3 ns maximum pulse width distortion
3 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
Qualified for automotive applications
Safety and regulatory approvals
UL recognition
The ADuM1200W and ADuM1201W are automotive grade
versions qualified for 125°C operation. See the Automotive
Products section for more information.
2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
FUNCTIONAL BLOCK DIAGRAMS
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
1
2
3
4
8
7
6
5
V
V
V
V
V
IORM = 560 V peak
DD1
DD2
OA
OB
ENCODE
ENCODE
DECODE
DECODE
V
V
IA
APPLICATIONS
Size-critical multichannel isolation
IB
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceiver isolation
Digital field bus isolation
GND
GND
2
1
Figure 1. ADuM1200 Functional Block Diagram
Hybrid electric vehicles, battery monitor, and motor drive
GENERAL DESCRIPTION
1
2
3
4
8
7
6
5
V
V
V
V
DD1
DD2
The ADuM120x1 are dual-channel digital isolators based on
the Analog Devices, Inc., iCoupler® technology. Combining
high speed CMOS and monolithic transformer technologies,
these isolation components provide outstanding performance
characteristics superior to alternatives, such as optocouplers.
DECODE
ENCODE
ENCODE
DECODE
V
OA
IA
V
IB
OB
GND
GND
1
2
Figure 2. ADuM1201 Functional Block Diagram
By avoiding the use of LEDs and photodiodes, iCoupler devices
remove the design difficulties commonly associated with opto-
couplers. The typical optocoupler concerns regarding uncertain
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329.
Rev. I
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 registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2004–2012 Analog Devices, Inc. All rights reserved.
5秒后页面跳转
解析光耦仿真器：升级光耦合器技术的必要性
英伟达新一代Blackwell GPU过热问题致交付延迟
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
