adum1210 Analog Devices, Inc., adum1210 Datasheet

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adum1210

Manufacturer Part Number
adum1210
Description
Dual-channel Digital Isolator
Manufacturer
Analog Devices, Inc.
Datasheet

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FEATURES
Narrow body, RoHS-compliant, 8-lead SOIC
Low power operation
3 V/5 V level translation
High temperature operation: 105°C
High data rate: dc to 10 Mbps (NRZ)
Precise timing characteristics
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
APPLICATIONS
Size-critical multichannel isolation
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceiver isolation
Digital field bus isolation
Gate drive interface
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.
5 V operation
3 V operation
3 ns maximum pulse width distortion
3 ns maximum channel-to-channel matching
UL recognition
CSA Component Acceptance Notice #5A
VDE certificate of conformity
1.1 mA per channel maximum @ 0 Mbps to 2 Mbps
3.7 mA per channel maximum @ 10 Mbps
0.8 mA per channel maximum @ 0 Mbps to 2 Mbps
2.2 mA per channel maximum @ 10 Mbps
2500 V rms for 1 minute per UL 1577
V
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
IORM
= 560 V peak
GND
V
DD1
V
V
IA
IB
1
FUNCTIONAL BLOCK DIAGRAM
1
2
3
4
ENCODE
ENCODE
Figure 1.
DECODE
DECODE
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
GENERAL DESCRIPTION
The ADuM1210
Analog Devices, Inc. iCoupler® 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, iCoupler devices
remove the design difficulties commonly associated with opto-
couplers. The concerns of the typical optocoupler regarding
uncertain current transfer ratios, nonlinear transfer functions,
and temperature 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 iCoupler products. Furthermore,
iCoupler 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 and enables 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 opto-
coupler 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
dual-channel digital isolator that defaults to an output high
condition, the ADuM1210 outputs default to a logic low state
when input power is off.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,329. Other patents
pending.
Dual-Channel Digital Isolator
8
7
6
5
V
V
V
GND
DD2
OA
OB
1
2
©2005–2007 Analog Devices, Inc. All rights reserved.
is a dual-channel, digital isolator based on
ADuM1210
www.analog.com
ADuM1200

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adum1210 Summary of contents

Page 1

... Furthermore alternative to the dual-channel digital isolator that defaults to an output high condition, the ADuM1210 outputs default to a logic low state when input power is off. 1 Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,329. Other patents pending ...

Page 2

... ADuM1210 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics—5 V Operation................................ 3 Electrical Characteristics—3 V Operation................................ 5 Electrical Characteristics—Mixed 5 V V/5 V Operation....................................................................................... 7 Package Characteristics ............................................................... 9 Regulatory Information............................................................... 9 Insulation and Safety-Related Specifications............................ 9 DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 Insulation Characteristics ...

Page 3

... 0.19 DDI (D) I 0.05 DDO (D) Rev Page ADuM1210 Unit Test Conditions MHz logic signal frequency MHz logic signal frequency mA 5 MHz logic signal frequency mA 5 MHz logic signal frequency μ ≤ ≤ V ...

Page 4

... ADuM1210 4 t propagation delay is measured from the 50% level of the falling edge of the V PHL measured from the 50% level of the rising edge of the the magnitude of the worst-case difference in t PSK load within the recommended operating conditions. 6 Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier ...

Page 5

... DDI (D) I 0.03 DDO (D) signal to the 50% level of the falling edge of the V Ix signal to the 50% level of the rising edge of the V Ix Rev Page ADuM1210 Unit Test Conditions MHz logic signal frequency MHz logic signal frequency mA 5 MHz logic signal frequency ...

Page 6

... ADuM1210 the magnitude of the worst-case difference in t PSK load within the recommended operating conditions. 6 Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier ...

Page 7

... PSK t 3 PSKCD t 22 PSKOD 3.0 2.5 Rev Page ADuM1210 ≤ 3.6 V, 4.5 V ≤ V ≤ 5.5 V. All DD1 DD2 Unit Test Conditions MHz logic signal frequency MHz logic signal frequency MHz logic signal frequency ...

Page 8

... ADuM1210 Parameter Common-Mode Transient Immunity at Logic High Output 7 Common-Mode Transient Immunity 7 at Logic Low Output Refresh Rate 5 V/3 V Operation 3 V/5 V Operation Input Dynamic Supply Current, 8 per Channel 5 V/3 V Operation 3 V/5 V Operation Output Dynamic Supply Current, per Channel 8 5 V/3 V Operation 3 V/5 V Operation 1 The supply current values are for both channels combined when running at identical data rates ...

Page 9

... File 205078 1 In accordance with UL 1577, each ADuM1210 is proof-tested by applying an insulation test voltage ≥ 3000 V rms for 1 second (current leakage detection limit = 5 μA accordance with DIN V VDE V 0884-10, each ADuM1210 is proof-tested by applying an insulation test voltage ≥1050 V peak for 1 second (partial discharge detection limit = 5 pC) ...

Page 10

... ADuM1210 DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 INSULATION CHARACTERISTICS This isolator is suitable for reinforced isolation within the safety limit data only. Maintenance of the safety data is ensured by protective circuits. Note that the asterisk (*) marked on the package denotes DIN V VDE V 0884-10 approval for a 560 V peak working voltage. ...

Page 11

... Maximum approved working voltage per IEC 60950-1 V peak Maximum approved working voltage per IEC 60950-1 and VDE V 0884-10 V peak Maximum approved working voltage per IEC 60950-1 V peak Maximum approved working voltage per IEC 60950-1 and VDE V 0884-10 Rev Page ADuM1210 ...

Page 12

... Table 11. Pin Function Descriptions Pin No. Mnemonic 1 V DD1 GND 1 5 GND DD2 Table 12. ADuM1210 Truth Table (Positive Logic) V Input V Input V State IA IB DD1 H H Powered L L Powered H L Powered L H Powered X X Unpowered X X Powered ...

Page 13

... Rev Page DATA RATE (Mbps) Supply Current vs. Data Rate for 5 V and 3 V Operation DD1 DATA RATE (Mbps) Supply Current vs. Data Rate for 5 V and 3 V Operation DD2 ADuM1210 30 30 ...

Page 14

... N is the number of turns in the receiving coil. Given the geometry of the receiving coil in the ADuM1210 and an imposed requirement that the induced voltage be at most 50% of the 0.5 V margin at the decoder, a maximum allowable 50% magnetic field is calculated, as shown in Figure 10 ...

Page 15

... Care should be taken in the layout of such traces to avoid this possibility. POWER CONSUMPTION The supply current at a given channel of the ADuM1210 isolator is a function of the supply voltage, the channel data rate, and the channel output load. For each input channel, the supply current is given by ...

Page 16

... ADuM1210 In the case of unipolar voltage, the stress on the insulation is significantly lower. This allows operation at higher working voltages while still achieving a 50-year service life. The working voltages listed in Table 10 can be applied while main- taining the 50-year minimum lifetime provided the voltage conforms to either the unipolar voltage case ...

Page 17

... Dimensions shown in millimeters and (inches) Maximum Maximum Maximum Propagation Pulse Width Side Data Rate Delay Distortion 10 Mbps Mbps Rev Page ADuM1210 0.50 (0.0196) 45° 0.25 (0.0099) 1.27 (0.0500) 0.40 (0.0157) Temperature Package Range Description −40 to +105 8-Lead SOIC_N °C °C −40 to +105 8-Lead SOIC_N ° ...

Page 18

... ADuM1210 NOTES Rev Page ...

Page 19

... NOTES Rev Page ADuM1210 ...

Page 20

... ADuM1210 NOTES ©2005–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05459-0-6/07(C) Rev Page ...

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