參數(shù)資料
型號(hào)： ADUM1210BRZ-RL7
廠(chǎng)商： ANALOG DEVICES INC
元件分類(lèi)： 其它接口
英文描述： Dual-Channel Digital Isolator
中文描述： SPECIALTY INTERFACE CIRCUIT, PDSO8
封裝： ROHS COMPLIANT, MS-012AA, SOIC-8
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 184K
代理商： ADUM1210BRZ-RL7
Dual-Channel Digital Isolator
ADuM1210
FEATURES
Narrow body, 8-lead SOIC
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
3 V operation
0.8 mA per channel maximum @ 0 Mbps to 2 Mbps
2.2 mA per channel maximum @ 10 Mbps
3 V/5 V level translation
High temperature operation: 105°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
Safety and regulatory approvals
UL recognition
2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE certificate of conformity
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
DIN EN 60950 (VDE 0805): 2001-12; DIN EN 60950: 2000
V
IORM
= 560 V peak
APPLICATIONS
Size-critical multichannel isolation
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceiver isolation
Digital field bus isolation
Rev. A
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: 781.329.4700
Fax: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
www.analog.com
1
Protected by U.S. Patents 5,952,849; 6,873,065; and other pending patents.
GENERAL DESCRIPTION
The ADuM1210
1
is a dual-channel, digital isolator based on
Analog Devices’
i
Coupler technology. Combining high speed
CMOS and monolithic transformer technology, this isolation
component provides outstanding performance characteristics
superior to alternatives such as optocoupler devices.
By avoiding the use of LEDs and photodiodes,
i
Coupler devices
remove the design difficulties commonly associated with
optocouplers. The concerns of the typical optocoupler
regarding uncertain current transfer ratios, nonlinear transfer
functions, and temperature and lifetime effects are eliminated
with the simple,
i
Coupler digital interfaces and stable
performance characteristics. The need for external drivers and
other discrete components is eliminated with
i
Coupler products.
Furthermore,
i
Coupler devices consume one-tenth to one-sixth
the power of optocouplers at comparable signal data rates.
The ADuM1210 isolator provides two independent isolation
channels operable with the supply voltage on either side ranging
from 2.7 V to 5.5 V. This provides compatibility with lower
voltage systems as well as enabling a voltage translation
functionality across the isolation barrier. In addition, the
ADuM1210 provides low pulse-width distortion (<3 ns) and
tight channel-to-channel matching (<3 ns). Unlike other
optocoupler alternatives, the ADuM1210 isolator has a patented
refresh feature that ensures dc correctness in the absence of
input logic transitions and during power-up/power-down
conditions. Furthermore, as an alternative to the
ADuM1200
dual-channel, digital isolator that defaults to an output high
condition, the ADuM1210’s outputs default to a logic low state
when input power is off.
FUNCTIONAL BLOCK DIAGRAM
ENCODE
DECODE
ENCODE
DECODE
V
DD1
V
IA
V
IB
GND
1
V
DD2
V
OA
V
OB
GND
2
1
2
3
4
8
7
6
5
0
Figure 1.
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