ADUM1201 Analog Devices, ADUM1201 Datasheet

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ADUM1201

Manufacturer Part Number
ADUM1201
Description
Manufacturer
Analog Devices
Datasheet

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FEATURES
Narrow body, RoHS-compliant, SOIC 8-lead package
Low power operation
Bidirectional communication
3 V/5 V level translation
High temperature operation: 105°C
High data rate: dc to 25 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
Rev. E
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
8.2 mA per channel maximum @ 25 Mbps
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
2500 V rms for 1 minute per UL 1577
V
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
IORM
GND
V
DD1
V
V
IA
IB
1
= 560 V peak
1
2
3
4
Figure 1. ADuM1200 Functional Block Diagram
ENCODE
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FUNCTIONAL BLOCK DIAGRAMS
V
V
V
GND
DD2
OA
OB
2
Dual-Channel Digital Isolators
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 ADuM120x
the Analog Devices, Inc. iCoupler® technology. Combining high
speed CMOS and monolithic transformer technology, these
isolation components provide outstanding performance char-
acteristics superior to alternatives, such as optocoupler devices.
By avoiding the use of LEDs and photodiodes, iCoupler
devices remove the design difficulties commonly associated
with optocouplers. The typical optocoupler concerns regarding
uncertain current transfer ratios, nonlinear transfer functions,
and temperature and lifetime effects are eliminated with the
simple iCoupler digital interfaces and stable performance char-
acteristics. The need for external drivers and other discrete
components is eliminated with these iCoupler products. Fur-
thermore, iCoupler devices consume one-tenth to one-sixth
the power of optocouplers at comparable signal data rates.
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.
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329.
Other patents are pending.
GND
V
V
DD1
V
OA
IB
1
1
2
3
4
Figure 2. ADuM1201 Functional Block Diagram
1
ADuM1200/ADuM1201
are dual-channel, digital isolators based on
©2004–2007 Analog Devices, Inc. All rights reserved.
DECODE
ENCODE
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www.analog.com
8
7
6
5
V
V
V
GND
DD2
IA
OB
2

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ADUM1201 Summary of contents

Page 1

... DD2 DD1 GND GND Figure 2. ADuM1201 Functional Block Diagram One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 ADuM1200/ADuM1201 1 are dual-channel, digital isolators based DD2 DECODE ENCODE ENCODE DECODE ...

Page 2

... ADuM1200/ADuM1201 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams............................................................. 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 ............................................................. 10 Regulatory Information............................................................. 10 Insulation and Safety-Related Specifications.......................... 10 DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 Insulation Characteristics ...

Page 3

... Mbps (BR and CR Grades Only) V Supply Current DD1 V Supply Current DD2 25 Mbps (CR Grade Only) V Supply Current DD1 V Supply Current DD2 ADuM1201 Total Supply Current, Two Channels Mbps V Supply Current DD1 V Supply Current DD2 10 Mbps (BR and CR Grades Only) V Supply Current DD1 V Supply Current ...

Page 4

... The supply current associated with an individual channel operating at a given data rate may be calculated as described in the Power Consumption section. See Figure 6 through Figure 8 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 9 through Figure 11 for total V and V supply currents as a function of data rate for ADuM1200 and ADuM1201 channel configurations. DD1 DD2 2 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed ...

Page 5

... Mbps (BR and CR Grades Only) V Supply Current DD1 V Supply Current DD2 25 Mbps (CR Grade Only) V Supply Current DD1 V Supply Current DD2 ADuM1201 Total Supply Current, Two Channels Mbps V Supply Current DD1 V Supply Current DD2 10 Mbps (BR and CR Grades Only) V Supply Current DD1 V Supply Current ...

Page 6

... The supply current associated with an individual channel operating at a given data rate may be calculated as described in the Power Consumption section. See Figure 6 through Figure 8 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 9 through Figure 11 for total V and V supply currents as a function of data rate for ADuM1200 and ADuM1201 channel configurations. DD1 DD2 2 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed ...

Page 7

... V/5 V Operation 25 Mbps (CR Grade Only) V Supply Current DD1 5 V/3 V Operation 3 V/5 V Operation V Supply Current DD2 5 V/3 V Operation 3 V/5 V Operation ADuM1201 Total Supply Current, Two Channels Mbps V Supply Current DD1 5 V/3 V Operation 3 V/5 V Operation V Supply Current DD2 5 V/3 V Operation 3 V/5 V Operation ...

Page 8

... ADuM1200/ADuM1201 Parameter For All Models Input Currents Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Logic Low Output Voltages SWITCHING SPECIFICATIONS ADuM120xAR 2 Minimum Pulse Width 3 Maximum Data Rate 4 Propagation Delay 4 Pulse Width Distortion, |t − PLH PHL Change vs. Temperature ...

Page 9

... The supply current associated with an individual channel operating at a given data rate may be calculated as described in the Power Consumption section. See Figure 6 through Figure 8 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 9 through Figure 11 for total V and V supply currents as a function of data rate for ADuM1200 and ADuM1201 channel configurations. DD1 DD2 2 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed ...

Page 10

... The device is considered a 2-terminal device; Pin 1, Pin 2, Pin 3, and Pin 4 are shorted together, and Pin 5, Pin 6, Pin 7, and Pin 8 are shorted together. REGULATORY INFORMATION The ADuM1200/ADuM1201 are approved by the organizations listed in Table 5. Refer to Table 10 and the Insulation Lifetime section for details regarding recommended maximum working voltages for specific cross-isolation waveforms and insulation levels. ...

Page 11

... Supply Voltages (V Input Signal Rise and Fall Times 1 All voltages are relative to their respective ground. See the DC Correctness and Magnetic Field Immunity section for information on immunity to external magnetic fields. 150 200 Rev Page ADuM1200/ADuM1201 Symbol Characteristic III 40/105/ ...

Page 12

... Table 11. ADuM1200 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 Table 12. ADuM1201 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 Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device ...

Page 13

... Ground 2. Ground Reference for Isolator Side Logic Output Logic Output Supply Voltage for Isolator Side 2, 2 5.5 V. DD2 V DD2 GND 2 Table 14. ADuM1201 Pin Function Descriptions Pin No Rev Page ADuM1200/ADuM1201 DD1 DD2 ADuM1201 V 2 ...

Page 14

... DATA RATE (Mbps) Figure 10. Typical ADuM1200 V Supply Current vs. DD2 Data Rate for 5 V and 3 V Operation DATA RATE (Mbps) Figure 11. Typical ADuM1201 Supply Current vs. DD1 DD2 Data Rate for 5 V and 3 V Operation ...

Page 15

... Similarly, if such an event occurs during a transmitted pulse (and has the worst-case polarity), it reduces the received pulse from >1 0.75 V—still well above the 0.5 V sensing threshold of the decoder. Rev Page ADuM1200/ADuM1201 … 10k 100k ...

Page 16

... Figure 8 provides per- channel supply current as a function of data rate for output condition. Figure 9 through Figure 11 provide total V DD1 ADuM1200 and ADuM1201 channel configurations. INSULATION LIFETIME All insulation structures eventually break down when subjected 10M 100M to voltage stress over a sufficiently long period ...

Page 17

... V and some limiting value. The limiting value can be positive or negative, but the voltage cannot cross 0 V. RATED PEAK VOLTAGE 0V Figure 15. Bipolar AC Waveform RATED PEAK VOLTAGE 0V Figure 16. Unipolar AC Waveform RATED PEAK VOLTAGE 0V Figure 17. DC Waveform Rev Page ADuM1200/ADuM1201 ...

Page 18

... ADuM1201AR 1 1 ADuM1201AR-RL7 ADuM1201ARZ ADuM1201ARZ-RL7 1 1 ADuM1201BR 1 1 ADuM1201BR-RL7 ADuM1201BRZ 1 1 ADuM1201BRZ-RL7 ADuM1201CR 1 1 ADuM1201CR-RL7 ADuM1201CRZ ADuM1201CRZ-RL7 R-8 = 8-lead narrow body SOIC_N RoHS Compliant Part. 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1 ...

Page 19

... NOTES Rev Page ADuM1200/ADuM1201 ...

Page 20

... ADuM1200/ADuM1201 NOTES ©2004–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04642-0-11/07(E) Rev Page ...

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