ADUM1400 Analog Devices, ADUM1400 Datasheet

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ADUM1400

Manufacturer Part Number
ADUM1400
Description
Manufacturer
Analog Devices
Datasheet

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GND
GND
FEATURES
Low power operation
Bidirectional communication
3 V/5 V level translation
High temperature operation: 105°C
High data rate: dc to 100 Mbps (NRZ)
Precise timing characteristics:
High common-mode transient immunity: >25 kV/μs
Output enable function
Wide body 16-lead SOIC package, Pb-free models available
Safety and regulatory approvals
APPLICATIONS
General-purpose multichannel isolation
SPI® interface/data converter isolation
RS-232/422/485 transceiver
Industrial fieldbus 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.
Figure 1. ADuM1400 Functional Block Diagram
V
DD1
V
V
V
V
NC
IA
IB
IC
ID
1
1
5 V operation:
3 V operation:
2 ns max pulse width distortion
2 ns max channel-to-channel matching
UL recognition: 2500 V rms for 1 minute per UL 1577
CSA component acceptance notice #5A
VDE certificate of conformity
1
2
3
4
5
6
8
7
1.0 mA per channel max @ 0 Mbps to 2 Mbps
3.5 mA per channel max @ 10 Mbps
31 mA per channel max @ 100 Mbps
0.7 mA per channel max @ 0 Mbps to 2 Mbps
2.1 mA per channel max @ 10 Mbps
20 mA per channel max @ 100 Mbps
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
V
IORM
ENCODE
ENCODE
ENCODE
ENCODE
= 560 V peak
DECODE
DECODE
DECODE
DECODE
16
15
14
13
12
10
11
9
V
GND
V
V
V
V
V
GND
DD2
OA
OB
OC
OD
E2
2
2
FUNCTIONAL BLOCK DIAGRAMS
GND
GND
Figure 2. ADuM1401 Functional Block Diagram
V
V
DD1
V
V
V
V
OD
E1
IA
IB
IC
1
1
1
2
3
4
5
6
7
8
ENCODE
ENCODE
DECODE
DECODE
ADuM1400/ADuM1401/ADuM1402
DECODE
DECODE
ENCODE
ENCODE
GENERAL DESCRIPTION
The ADuM140x are four-channel digital isolators based on
Analog Devices’ iCoupler® technology. Combining high speed
CMOS and monolithic air core transformer technology, these
isolation components provide outstanding performance charac-
teristics 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 typical optocoupler concerns regarding uncertain
current transfer ratios, nonlinear transfer functions, and tem-
perature and lifetime effects are eliminated with the simple
iCoupler digital interfaces and stable performance characteris-
tics. The need for external drivers and other discretes is elimi-
nated with these iCoupler products. Furthermore, iCoupler
devices run at one-tenth to one-sixth the power consumption of
optocouplers at comparable signal data rates.
The ADuM140x isolators provide four independent isolation
channels in a variety of channel configurations and data rates
(see Ordering Guide). All ADuM140x models operate with the
supply voltage of either side ranging from 2.7 V to 5.5 V, provid-
ing compatibility with lower voltage systems as well as enabling
a voltage translation functionality across the isolation barrier. In
addition, the ADuM140x provides low pulse width distortion
(<2 ns for CRW grade), and tight channel-to-channel matching
(<2 ns for CRW grade). Unlike other optocoupler alternatives,
the ADuM140x isolators have a patented refresh feature that
ensures dc correctness in the absence of input logic transitions
and during power-up/power-down conditions.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
Quad-Channel Digital Isolators
16
15
14
13
12
11
10
9
V
GND
V
V
V
V
V
GND
DD2
OA
OB
OC
ID
E2
2
2
© 2004 Analog Devices, Inc. All rights reserved.
GND
GND
Figure 3. ADuM1402 Functional Block Diagram
V
V
V
V
DD1
V
V
OC
OD
E1
IA
IB
1
1
1
2
4
5
6
7
8
3
ENCODE
ENCODE
DECODE
DECODE
www.analog.com
DECODE
DECODE
ENCODE
ENCODE
16
15
14
13
12
10
11
9
V
GND
V
V
V
V
V
GND
DD2
OA
OB
IC
ID
E2
2
2

ADUM1400 Summary of contents

Page 1

... GND Figure 1. ADuM1400 Functional Block Diagram 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. ...

Page 2

... ADuM1400/ADuM1401/ADuM1402 TABLE OF CONTENTS 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 EN 60747-5-2 (VDE 0884 Part 2) Insulation Characteristics (Pending).......................................................... 11 Recommended Operating Conditions .................................... 11 Absolute Maximum Ratings.......................................................... 12 REVISION HISTORY 5/04— ...

Page 3

... DD1 DD2 wise noted; all typical specifications are at T Table 1. Parameter DC SPECIFICATIONS Input Supply Current, per Channel, Quiescent Output Supply Current, per Channel, Quiescent ADuM1400, Total Supply Current, Four Channels Mbps V Supply Current DD1 V Supply Current DD2 10 Mbps (BRW and CRW Grades Only) ...

Page 4

... See Figure through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 8 Figure 14 for total I and I supply currents as a function of data rate for ADuM1400/ADuM1401/ADuM1402 channel configurations. DD1 DD2 3 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed. ...

Page 5

... DD1 DD2 wise noted; all typical specifications are at T Table 2. Parameter DC SPECIFICATIONS Input Supply Current, per Channel, Quiescent I Output Supply Current, per Channel, Quiescent ADuM1400, Total Supply Current, Four Channels Mbps V Supply Current DD1 V Supply Current DD2 10 Mbps (BRW and CRW Grades Only) ...

Page 6

... See Figure through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 8 Figure 14 for total I and I supply currents as a function of data rate for ADuM1400/ADuM1401/ADuM1402 channel configurations. DD1 DD2 3 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed. ...

Page 7

... Table 3. Parameter DC SPECIFICATIONS Input Supply Current, per Channel, Quiescent I 5 V/3 V Operation 3 V/5 V Operation Output Supply Current, per Channel, Quiescent I 5 V/3 V Operation 3 V/5 V Operation ADuM1400, Total Supply Current, Four Channels Mbps V Supply Current DD1 5 V/3 V Operation 3 V/5 V Operation V Supply Current DD2 ...

Page 8

... ADuM1400/ADuM1401/ADuM1402 Parameter 3 V/5 V Operation V Supply Current DD2 5 V/3 V Operation 3 V/5 V Operation ADuM1402, Total Supply Current, Four 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 10 Mbps (BRW and CRW Grades Only) V Supply Current ...

Page 9

... Power Consumption section on Page 18. See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 11 through Figure 14 for total I ply currents as a function of data rate for ADuM1400/ADuM1401/ADuM1402 channel configurations. 3 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed ...

Page 10

... ADuM1400/ADuM1401/ADuM1402 PACKAGE CHARACTERISTICS Table 4. Parameter 1 Resistance (Input-Output) Capacitance (Input-Output Input Capacitance IC Junction-to-Case Thermal Resistance, Side 1 IC Junction-to-Case Thermal Resistance, Side 2 1 Device considered a 2-terminal device: Pins and 8 shorted together and Pins 9, 10, 11, 12, 13, 14, 15, and 16 shorted together. ...

Page 11

... Input Signal Rise and Fall Times 1 All voltages are relative to their respective ground. See the DC Correctness and Magnetic Field 150 200 Immunity section on Page 17 for information on immunity to external mag- netic fields. Rev Page ADuM1400/ADuM1401/ADuM1402 Symbol Characteristic I–IV I–III I–II 40/105/ ...

Page 12

... ADuM1400/ADuM1401/ADuM1402 ABSOLUTE MAXIMUM RATINGS Table 9. Parameter Storage Temperature Ambient Operating Temperature 1 Supply Voltages 1, 2 Input Voltage 1, 2 Output Voltage 3 Average Output Current, Per Pin Side 1 Side 2 4 Common-Mode Transients 1 All voltages are relative to their respective ground and V refer to the supply voltages on the input and output sides of a given channel, respectively. See P ...

Page 13

... Pins 2 and 8 are internally connected. Connecting both to GND Output enable Pin 10 on the ADuM1400 may be left disconnected, if outputs are to be always enabled. Output enable Pins 7 and 10 on the ADuM1401/ADuM1402 may be left disconnected, if outputs are to be always enabled. In noisy environments, connecting Pin 7 (for ADuM1401 and ADuM1402) and Pin 10 (for all models external logic high or low is recommended ...

Page 14

... ADuM1400/ADuM1401/ADuM1402 Table 11. ADuM1400 Pin Function Descriptions Pin No. Mnemonic Function 1 V Supply voltage for isolator Side 1, 2 5.5 V. DD1 2 GND Ground 1. Ground reference for isolator Side Logic Input Logic Input Logic Input Logic Input D. ...

Page 15

... Figure 11. Typical ADuM1400 V Supply Current vs. Data Rate DD1 for 5 V and 3 V Operation DATA RATE (Mbps) Figure 12. Typical ADuM1400 V Supply Current vs. Data Rate DD2 for 5 V and 3 V Operation ...

Page 16

... ADuM1400/ADuM1401/ADuM1402 DATA RATE (Mbps) Figure 14. Typical ADuM1401 V Supply Current vs. Data Rate DD2 for 5 V and 3 V Operation DATA RATE (Mbps) Figure 15. Typical ADuM1402 VDD1 or VDD2 Supply Current vs. ...

Page 17

... Given the geometry of the receiving coil in the ADuM140x 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 19. 50% Rev Page ADuM1400/ADuM1401/ADuM1402 ∑ 2 ∏ 2,… turn in the receiving coil (cm). ...

Page 18

... Figure 10 provides per- channel supply current as a function of data rate for output condition. Figure 11 through Figure 14 provide total I and I DD1 ADuM1400/ADuM1401/ADuM1402 channel configurations. 10M 100M Rev Page DDI( × ...

Page 19

... ORDERING GUIDE Number of Number of Inputs, Inputs, Models V Side V DD1 DD2 2 ADuM1400ARW ADuM1400BRW ADuM1400CRW ADuM1400ARWZ ADuM1400BRWZ ADuM1400CRWZ ADuM1401ARW ADuM1401BRW ADuM1401CRW ADuM1401ARWZ ADuM1401BRWZ ADuM1401CRWZ ADuM1402ARW ...

Page 20

... ADuM1400/ADuM1401/ADuM1402 NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and regis- tered trademarks are the property of their respective owners. C03786–0–5/04(A) Rev Page ...

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