ADUM1250ARZ Analog Devices Inc, ADUM1250ARZ Datasheet

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ADUM1250ARZ

Manufacturer Part Number
ADUM1250ARZ
Description
IC,Digital Coupler,HYBRID,SOP,8PIN,PLASTIC
Manufacturer
Analog Devices Inc
Series
iCoupler®r
Datasheet

Specifications of ADUM1250ARZ

Inputs - Side 1/side 2
2/2
Number Of Channels
4
Isolation Rating
2500Vrms
Voltage - Supply
3 V ~ 5.5 V
Data Rate
1Mbps
Propagation Delay
150ns
Output Type
Open Drain
Package / Case
8-SOIC (3.9mm Width)
Operating Temperature
-40°C ~ 105°C
Rohs Compliant
Yes
No. Of Channels
2
Supply Voltage Range
3V To 5.5V
Digital Ic Case Style
SOIC
No. Of Pins
8
Operating Temperature Range
-40°C To +105°C
Leaded Process Compatible
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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FEATURES
Bidirectional I
Open-drain interfaces
Suitable for hot swap applications
30 mA current sink capability
1000 kHz operation
3.0 V to 5.5 V supply/logic levels
8-lead SOIC RoHS-compliant package
High temperature operation: 125°C
Qualified for automotive applications
Safety and regulatory approvals
APPLICATIONS
Isolated I
Multilevel I
Power supplies
Networking
Power-over-Ethernet
Hybrid electric vehicle battery management
GENERAL DESCRIPTION
The ADuM1250/ADuM1251
with nonlatching, bidirectional communication channels
compatible with I
splitting I
for use with standalone optocouplers.
The ADuM1250 provides two bidirectional channels, supporting a
complete isolated I
bidirectional channel and one unidirectional channel for those
applications where a bidirectional clock is not required.
1
Rev. C
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.
Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329. Other patents pending.
UL recognition
CSA Component Acceptance Notice #5A
VDE certificate of conformity
2500 V rms for 1 minute per UL 1577
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
V
IORM
2
2
C, SMBus, or PMBus interfaces
C signals into separate transmit and receive signals
= 560 V peak
2
C interfaces
2
C communication
2
C® interfaces. This eliminates the need for
2
C interface. The ADuM1251 provides one
1
are hot swappable digital isolators
Hot Swappable, Dual I
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Both the ADuM1250 and ADuM1251 contain hot swap circuitry
to prevent glitching data when an unpowered card is inserted
onto an active bus.
These isolators are based on iCoupler® chip scale transformer
technology from Analog Devices, Inc. iCoupler is a magnetic
isolation technology with functional, performance, size, and
power consumption advantages as compared to optocouplers.
With the ADuM1250/ADuM1251, iCoupler channels can be
integrated with semiconductor circuitry, which enables a
complete isolated I
form factor.
GND
GND
SDA
SDA
SCL
SCL
V
V
DD1
DD1
1
1
1
1
1
1
FUNCTIONAL BLOCK DIAGRAMS
1
2
3
4
1
2
3
4
ADuM1250/ADuM1251
©2006–2010 Analog Devices, Inc. All rights reserved.
2
DECODE
ENCODE
DECODE
ENCODE
DECODE
ENCODE
ENCODE
C interface to be implemented in a small
Figure 1. ADuM1250
Figure 2. ADuM1251
ENCODE
DECODE
ENCODE
DECODE
ENCODE
DECODE
DECODE
2
C Isolators
www.analog.com
8
7
6
5
8
7
6
5
V
SDA
SCL
GND
V
SDA
SCL
GND
DD2
DD2
2
2
2
2
2
2

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ADUM1250ARZ Summary of contents

Page 1

FEATURES 2 Bidirectional I C communication Open-drain interfaces Suitable for hot swap applications 30 mA current sink capability 1000 kHz operation 3 5.5 V supply/logic levels 8-lead SOIC RoHS-compliant package High temperature operation: 125°C Qualified for automotive applications ...

Page 2

ADuM1250/ADuM1251 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagrams ............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics ............................................................. 3 Package Characteristics ............................................................... 5 Regulatory Information ............................................................... 5 Insulation and ...

Page 3

SPECIFICATIONS ELECTRICAL CHARACTERISTICS 1 DC Specifications All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All typical specifications are 25° 3 and V A DD1 Table 1. ...

Page 4

ADuM1250/ADuM1251 1 AC Specifications All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All typical specifications are 25° 3 and V A DD1 Table 2. Parameter MAXIMUM ...

Page 5

PACKAGE CHARACTERISTICS Table 3. Parameter 1 Resistance (Input to Output) 1 Capacitance (Input to Output) Input Capacitance IC Junction-to-Case Thermal Resistance, Side 1 IC Junction-to-Case Thermal Resistance, Side 2 1 The device is considered a 2-terminal device; Pin 1 through ...

Page 6

ADuM1250/ADuM1251 DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS This isolator is suitable for reinforced isolation only within the safety limit data. Maintenance of the safety data is ensured by protective circuits. The * marking on the package ...

Page 7

ABSOLUTE MAXIMUM RATINGS Ambient temperature = 25°C, unless otherwise noted. Table 8. Parameter Rating Storage Temperature (T ) −55°C to +150°C ST Ambient Operating Temperature ( Grade −40°C to+105°C S Grade −40°C to+125°C Supply Voltages (V ,V ...

Page 8

ADuM1250/ADuM1251 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 9. ADuM1250 Pin Function Descriptions Pin No. Mnemonic 1 V DD1 2 SDA 1 3 SCL 1 4 GND 1 5 GND 2 6 SCL 2 7 SDA DD2 Table ...

Page 9

TEST CONDITIONS DD1 DECODE ENCODE 1 SDA 1 ENCODE DECODE 2 SCL 1 DECODE ENCODE 3 GND 1 ENCODE DECODE 4 Figure 5. Timing Test Diagram Rev Page ...

Page 10

ADuM1250/ADuM1251 APPLICATIONS INFORMATION FUNCTIONAL DESCRIPTION The ADuM1250/ADuM1251 interfaces on each side bidirectional I C signal. Internally, the I into two unidirectional channels communicating in opposing directions via a dedicated iCoupler isolation channel for each. One channel (the ...

Page 11

TYPICAL APPLICATION DIAGRAM OPTIONAL 200Ω V DD1 ADuM1250 8 1 SDA SCL GND Figure 9. Typical Isolated I C Interface Using ADuM1250 Figure 9 shows a typical application circuit including ...

Page 12

... ADuM1250/ADuM1251 OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY ORDERING GUIDE Number of Inputs Model V Side DD1 ADuM1250ARZ 2 ADuM1250ARZ-RL7 2 ADuM1250SRZ 2 ADuM1250 SRZ-RL7 2 ADuM1250WSRZ 2 ADuM1250 WSRZ-RL7 2 ADuM1251ARZ 2 ADuM1251ARZ-RL7 RoHS Compliant Part Qualified for Automotive Applications. AUTOMOTIVE PRODUCTS The ADuM1250W models are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. Note that these automotive models may have specifications that differ from the commercial models ...

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