adum3100 Analog Devices, Inc., adum3100 Datasheet

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adum3100

Manufacturer Part Number
adum3100
Description
Digital Isolator, Enhanced System-level Esd Reliability
Manufacturer
Analog Devices, Inc.
Datasheet

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Part Number
Manufacturer
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Price
Part Number:
adum3100ARZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
Enhanced system-level ESD performance per IEC 61000-4-x
High data rate: dc to 100 Mbps (NRZ)
Compatible with 3.3 V and 5.0 V operation/level translation
105°C maximum operating temperature
Low power operation
8-lead SOIC, Pb-free package
High common-mode transient immunity: >25 kV/μs
Safety and regulatory information
GENERAL DESCRIPTION
The ADuM3100
iCoupler® technology. Combining high speed CMOS and
monolithic transformer technology, this isolation component
provides outstanding performance characteristics superior to
alternatives, such as optocoupler devices.
Configured as a pin-compatible replacement for existing high
speed optocouplers, the ADuM3100 supports data rates as high
as 25 Mbps and 100 Mbps.
The ADuM3100 operates with a voltage supply ranging from
3.0 V to 5.5 V, boasts a propagation delay of <18 ns and an edge
asymmetry of <2 ns, and is compatible with temperatures up to
105°C. It operates at very low power, less than 2.0 mA of
quiescent current (sum of both sides), and a dynamic
current of less than 160 µA per Mbps of data rate. Unlike
other optocoupler alternatives, the ADuM3100 provides dc
correctness with a patented refresh feature that continuously
updates the output signal.
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.
5 V operation
3.3 V operation
UL recognized: 2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
2.0 mA maximum @ 1 Mbps
5.6 mA maximum @ 25 Mbps
18 mA maximum @ 100 Mbps
1.1 mA maximum @ 1 Mbps
4.2 mA maximum @ 25 Mbps
8.3 mA maximum @ 50 Mbps
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003–01
DIN EN 60950 (VDE 0805): 2001–12; EN 60950: 2000
V
IORM
= 560 V
1
is a digital isolator based on Analog Devices
PEAK
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
APPLICATIONS
Digital fieldbus isolation
Opto-isolator replacement
Computer-peripheral interface
Microprocessor system interface
General instrumentation and data acquisition
(DATA IN)
The ADuM3100 is offered in two grades. The ADuM3100AR
and ADuM3100BR can operate up to a maximum temperature
of 105°C and support data rates up to 25 Mbps and 100 Mbps,
respectively.
In comparison to the ADuM1100 digital isolator, the
ADuM3100 contains various circuit and layout changes to
provide increased capability relative to system-level IEC 61000-
4-× testing (ESD/burst/surge). The precise capability in these
tests for either the
determined by the design and layout of the user’s board or
module. For more information, see
ESD/Latch-Up Considerations with iCoupler Isolation
Products.
1
Protected by U.S. Patents 5,952,849; 6,525,566; 6,922,080; 6,903,578;
6,873,065; and other pending patents.
GND
System-Level ESD Reliability
V
V
DD1
DD1
V
1
I
1
2
3
4
NOTES
1. FOR PRINCIPLES OF OPERATION, SEE METHOD OF OPERATION,
Digital Isolator, Enhanced
DC CORRECTNESS, AND MAGNETIC FIELD IMMUNITY SECTION.
FUNCTIONAL BLOCK DIAGRAM
UPDATE
ADuM1100
O
E
N
C
D
E
©2006 Analog Devices, Inc. All rights reserved.
ADuM3100
Figure 1.
or ADuM3100 is strongly
WATCHDOG
D
C
O
D
E
E
Application Note AN-793,
ADuM3100
www.analog.com
8
7
6
5
V
GND
V
(DATA OUT)
GND
DD2
O
2
2

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adum3100 Summary of contents

Page 1

... FOR PRINCIPLES OF OPERATION, SEE METHOD OF OPERATION, DC CORRECTNESS, AND MAGNETIC FIELD IMMUNITY SECTION. Figure 1. The ADuM3100 is offered in two grades. The ADuM3100AR and ADuM3100BR can operate maximum temperature of 105°C and support data rates Mbps and 100 Mbps, respectively. In comparison to the ADuM1100 digital isolator, the ...

Page 2

... ADuM3100 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Electrical Specifications Operation........................................ 3 Electrical Specifications, 3.3 V Operation..................................... 4 Electrical Specifications, Mixed 5 V V/5 V Operation............................................................................ 5 Package Characteristics ............................................................... 7 Regulatory Information............................................................... 7 Insulation and Safety-Related Specifications............................ 7 DIN EN 60747-5-2 (VDE 0884 Part 2) Insulation Characteristics .............................................................................. 8 Recommended Operating Conditions ...................................... 8 REVISION HISTORY 3/06— ...

Page 3

... DD1 0. DD1 4.5 mA 12.5 MHz logic signal freq. 1.1 mA 12.5 MHz logic signal freq MHz logic signal freq. 2 MHz logic signal freq., ADuM3100BR only +10 μA 0 ≤ V ≤ DD1 −20 μ –4 mA ...

Page 4

... DD1 0 DD1 3.4 mA 12.5 MHz logic signal freq. 0.8 mA 12.5 MHz logic signal freq. 6 MHz logic signal freq., ADuM3100BR only 1 MHz logic signal freq., ADuM3100BR only +10 μA 0 ≤ V ≤ DD1 –20 μ –2.5 mA ...

Page 5

... V/5 V Operation Input Currents Logic High Output Voltage, 5 V/3 V Operation Logic Low Output Voltage, 5 V/3 V Operation Logic High Output Voltage, 3 V/5 V Operation Logic Low Output Voltage, 3 V/5 V Operation SWITCHING SPECIFICATIONS For ADuM3100AR 3 Minimum Pulse Width 4 Maximum Data Rate For ADuM3100BR 3 Minimum Pulse Width ...

Page 6

... Because the input thresholds of the ADuM3100 are at voltages other than the 50% level of typical input signals, the measured propagation delay and pulse-width distortion can be affected by slow input rise/fall times. See the System-Level ESD Considerations and Enhancements section and Figure 13 to Figure 17 for information on the impact of given input rise/fall times on these parameters ...

Page 7

... Recognized under 1577 Component Recognition Program 1 File E214100 1 In accordance with UL 1577, each ADuM3100 is proof tested by applying an insulation test voltage ≥3000 V rms for 1 second (leakage detection current limit, I ≤ 5 μA). I– accordance with DIN EN 60747-5-2, each ADuM3100 is proof tested by applying an insulation test voltage ≥1050 V ≤ ...

Page 8

... ADuM3100 DIN EN 60747-5-2 (VDE 0884 PART 2) INSULATION CHARACTERISTICS Table 7. Description Installation Classification per DIN VDE 0110 For Rated Mains Voltage ≤ 150 V rms For Rated Mains Voltage ≤ 300 V rms For Rated Mains Voltage ≤ 400 V rms Climatic Classification Pollution Degree (DIN VDE 0110, Table 5) ...

Page 9

... Exposure to absolute V + 0.5 V maximum rating conditions for extended periods may affect DD1 V + 0.5 V device reliability. DD2 Ambient temperature = 25°C, unless otherwise noted. +25 mA +100 kV/µs V State DD2 Powered Powered Powered Unpowered Rev Page ADuM3100 V Output ...

Page 10

... GND Output Ground Logic Output O 7 GND Output Ground 2 8 VDD Output Supply Voltage DD1 DD2 ADuM3100 V GND TOP VIEW DD1 (Not to Scale) O GND GND PIN 1 AND PIN 3 ARE INTERNALLY CONNECTED STRONGLY ...

Page 11

... PHL 15 t PLH –50 – TEMPERATURE (° PLH 12 t PHL –50 – TEMPERATURE (° PHL 15 t PLH –50 – TEMPERATURE (°C) ADuM3100 100 125 100 125 100 125 ...

Page 12

... ADuM3100 1.7 1.6 –40°C 1.5 +25°C 1.4 1.3 +125°C 1.2 1.1 3.0 3.5 4.0 4.5 INPUT SUPPLY VOLTAGE, V Figure 10. Typical Input Voltage Switching Threshold, Low-to-High Transition 1.4 1.3 1.2 1.1 1.0 0.9 0.8 5.0 5.5 (V) DD1 Rev Page –40°C +25°C 3.0 3.5 4.0 4.5 5.0 INPUT SUPPLY VOLTAGE, V (V) DD1 Figure 11. Typical Input Voltage Switching Threshold, High-to-Low Transition +125°C ...

Page 13

... APPLICATIONS PC BOARD LAYOUT The ADuM3100 digital isolator requires no external interface circuitry for the logic interfaces. A bypass capacitor is recommended at the input and output supply pins. The input bypass capacitor can conveniently connect between Pin 3 and Pin 4 (see Figure 12). Alternatively, the bypass capacitor can be located between Pin 1 and Pin 4 ...

Page 14

... The analysis that follows defines the conditions under which this can occur. The ADuM3100 3.3 V operating condition is examined because it represents the most susceptible mode of operation. ...

Page 15

... Care should be taken in the layout of such traces to avoid this possibility. POWER CONSUMPTION The supply current of the ADuM3100 isolator is a function of the supply voltage, the input data rate, and the output load. The input supply current is given by I ...

Page 16

... ADuM3100ARZ-RL7 −40°C to +105°C 1 ADuM3100BRZ −40°C to +105°C 1 ADuM3100BRZ-RL7 −40°C to +105° Pb-free part. ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 5.00 (0.1968) 4.80 (0.1890) ...

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