AD ADUM3201 Dual-channel, digital isolators, enhanced system-level esd reliability Datasheet

Dual-Channel, Digital Isolators,
Enhanced System-Level ESD Reliability
ADuM3200/ADuM3201
FEATURES
GENERAL DESCRIPTION
Enhanced system-level ESD performance per IEC 61000-4-x
Narrow body, 8-lead SOIC, Pb-free package
Low power operation
5 V operation
1.6 mA per channel maximum @ 0 Mbps to 2 Mbps
3.7 mA per channel maximum @ 10 Mbps
7.5 mA per channel maximum @ 25 Mbps
3 V operation
1.4 mA per channel maximum @ 0 Mbps to 2 Mbps
2.4 mA per channel maximum @ 10 Mbps
4.6 mA per channel maximum @ 25 Mbps
Bidirectional communication
3 V/5 V level translation
High temperature operation: 105°C
High data rate: dc to 25 Mbps (NRZ)
Precise timing characteristics
3 ns maximum pulse-width distortion
3 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
UL recognition: 2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
DIN EN 60950 (VDE 0805): 2001-12; DIN EN 60950: 2000
VIORM = 560 V peak
The ADuM320x 1 are dual-channel, digital isolators based on
Analog Devices’ iCoupler® technology. Combining high speed
CMOS and monolithic transformer technology, these isolation
components provide 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
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
characteristics. The need for external drivers and other discrete
components is eliminated with these iCoupler products.
Furthermore, iCoupler devices consume one-tenth to one-sixth
the power of optocouplers at comparable signal data rates.
The ADuM320x 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. The
ADuM320x isolators have a patented refresh feature that ensures
dc correctness in the absence of input logic transitions and
during power-up/power-down conditions.
In comparison to the ADuM120x isolators, the ADuM320x
isolators contain various circuit and layout changes to provide
increased capability relative to system-level IEC 61000-4-x
testing (ESD, burst, surge). The precise capability in these tests
for either the ADuM120x or ADuM320x products is strongly
determined by the design and layout of the user’s board or
module. For more information, see Application Note AN-793,
ESD/Latch-Up Considerations with iCoupler Isolation Products.
APPLICATIONS
Size-critical multichannel isolation
SPI® interface/data converter isolation
RS-232/RS-422/RS-485 transceiver isolation
Digital field bus isolation
1
Protected by U.S. Patents 5,952,849; 6,873,065; and other pending patents.
VDD1 1
8
VDD2
VDD1 1
8
VDD2
ENCODE
DECODE
7
VOA
VOA 2
DECODE
ENCODE
7
VIA
VIB 3
ENCODE
DECODE
6
VOB
VIB 3
ENCODE
DECODE
6
VOB
5
GND2
5
GND2
GND1 4
05927-001
VIA 2
GND1 4
05927-002
FUNCTIONAL BLOCK DIAGRAMS
Figure 1. ADuM3200 Functional Block Diagram
Figure 2. ADuM3201 Functional Block Diagram
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
Rev. 0
ADuM3200/ADuM3201
TABLE OF CONTENTS
Features .............................................................................................. 1
Recommended Operating Conditions .................................... 11
Applications....................................................................................... 1
Absolute Maximum Ratings ......................................................... 12
General Description ......................................................................... 1
ESD Caution................................................................................ 12
Functional Block Diagrams............................................................. 1
Pin Configurations and Function Descriptions ......................... 13
Revision History ............................................................................... 2
Typical Performance Characteristics ........................................... 14
Specifications..................................................................................... 3
Application Information................................................................ 15
Electrical Characteristics—5 V Operation................................ 3
PC Board Layout ........................................................................ 15
Electrical Characteristics—3 V Operation................................ 5
System-Level ESD Considerations and Enhancements ........ 15
Electrical Characteristics—Mixed 5 V/3 V or 3 V/5 V
Operation....................................................................................... 7
Propagation Delay-Related Parameters................................... 15
Package Characteristics ............................................................. 10
Regulatory Information............................................................. 10
Insulation and Safety-Related Specifications.......................... 10
DC Correctness and Magnetic Field Immunity........................... 15
Power Consumption .................................................................. 16
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 17
DIN EN 60747-5-2 (VDE 0884 Part 2) Insulation
Characteristics ............................................................................ 11
REVISION HISTORY
7/06—Revision 0: Initial Version
Rev. 0 | Page 2 of 20
ADuM3200/ADuM3201
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—5 V OPERATION
All voltages are relative to their respective ground. 4.5 V ≤ VDD1 ≤ 5.5 V, 4.5 V ≤ VDD2 ≤ 5.5 V. All minimum/maximum specifications
apply over the entire recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD1 = VDD2 = 5 V.
Table 1.
Parameter
DC SPECIFICATIONS
Input Supply Current, per Channel, Quiescent
Output Supply Current, per Channel, Quiescent
ADuM3200, Total Supply Current, Two Channels 1
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BR and CR Grades Only)
VDD1 Supply Current
VDD2 Supply Current
25 Mbps (CR Grade Only)
VDD1 Supply Current
VDD2 Supply Current
ADuM3201, Total Supply Current, Two Channels1
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BR and CR Grades Only)
VDD1 Supply Current
VDD2 Supply Current
25 Mbps (CR Grade Only)
VDD1 Supply Current
VDD2 Supply Current
For All Models
Input Currents
Logic High Input Threshold
Symbol
Typ
Max
Unit
IDDI (Q)
IDDO (Q)
0.4
0.5
0.8
0.6
mA
mA
IDD1 (Q)
IDD2 (Q)
1.3
1.0
1.7
1.6
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
IDD1 (10)
IDD2 (10)
3.5
1.7
4.6
2.8
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDD1 (25)
IDD2 (25)
7.7
3.1
10.0
3.9
mA
mA
12.5 MHz logic signal freq.
12.5 MHz logic signal freq.
IDD1 (Q)
IDD2 (Q)
1.1
1.3
1.5
1.8
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
IDD1 (10)
IDD2 (10)
2.6
3.1
3.4
4.0
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDD1 (25)
IDD2 (25)
5.3
6.4
6.8
8.3
mA
mA
12.5 MHz logic signal freq.
12.5 MHz logic signal freq.
+0.01
+10
μA
V
0 ≤ VIA, VIB ≤ VDD1 or VDD2
0.3 VDD1,
VDD2
V
IIA, IIB
VIH
Logic Low Input Threshold
VIL
Logic High Output Voltages
VOAH
VOBH
Logic Low Output Voltages
SWITCHING SPECIFICATIONS
ADuM320xAR
Minimum Pulse Width 2
Maximum Data Rate 3
Propagation Delay 4
Pulse-Width Distortion, |tPLH − tPHL|4
Propagation Delay Skew 5
Channel-to-Channel Matching 6
Output Rise/Fall Time (10% to 90%)
Min
−10
0.7 VDD1,
VDD2
VDD1,
VDD2 − 0.1
VDD1,
VDD2 − 0.5
VOAL
VOBL
5.0
V
IOx = −20 μA, VIx = VIxH
4.8
V
IOx = −4 mA, VIx = VIxH
0.1
0.1
0.4
V
V
V
IOx = 20 μA, VIx = VIxL
IOx = 400 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
1000
ns
Mbps
ns
ns
ns
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
0.0
0.04
0.2
PW
tPHL, tPLH
PWD
tPSK
tPSKCD/OD
tR/tF
Test Conditions
1
20
150
40
100
50
10
Rev. 0 | Page 3 of 20
ADuM3200/ADuM3201
Parameter
ADuM320xBR
Minimum Pulse Width2
Maximum Data Rate3
Propagation Delay4
Pulse-Width Distortion, |tPLH − tPHL|4
Change vs. Temperature
Propagation Delay Skew5
Channel-to-Channel Matching,
Codirectional Channels6
Channel-to-Channel Matching,
Opposing Directional Channels6
Output Rise/Fall Time (10% to 90%)
ADuM320xCR
Minimum Pulse Width2
Maximum Data Rate3
Propagation Delay4
Pulse-Width Distortion, |tPLH – tPHL|4
Change vs. Temperature
Propagation Delay Skew5
Channel-to-Channel Matching,
Codirectional Channels6
Channel-to-Channel Matching,
Opposing Directional Channels6
Output Rise/Fall Time (10% to 90%)
For All Models
Common-Mode Transient Immunity
at Logic High Output 7
Common-Mode Transient Immunity
at Logic Low Output7
Refresh Rate
Input Dynamic Supply Current, per Channel 8
Output Dynamic Supply Current, per Channel8
Symbol
Min
Typ
PW
Max
Unit
Test Conditions
100
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPSK
tPSKCD
15
3
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
15
ns
CL = 15 pF, CMOS signal levels
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPHL, tPLH
PWD
10
20
50
3
5
tR/tF
2.5
PW
tPSK
tPSKCD
15
3
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
15
ns
CL = 15 pF, CMOS signal levels
2.5
ns
CL = 15 pF, CMOS signal levels
VIx = VDD1, VDD2, VCM = 1000 V,
transient magnitude = 800 V
VIx = 0 V, VCM = 1000 V,
transient magnitude = 800 V
tPHL, tPLH
PWD
25
20
20
50
40
45
3
5
tR/tF
|CMH|
25
35
kV/μs
|CML|
25
35
kV/μs
1.2
0.19
0.05
Mbps
mA/Mbps
mA/Mbps
fr
IDDI (D)
IDDO (D)
1
The supply current values for both channels are combined when running at identical data rates. Output supply current values are specified with no output load
present. The supply current associated with an individual channel operating at a given data rate can 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 IDD1 and IDD2 supply currents as a function of data rate for ADuM3200 and ADuM3201 channel configurations.
2
The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed.
3
The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed.
4
tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
5
tPSK is the magnitude of the worst-case difference in tPHL and/or tPLH that is measured between units at the same operating temperature, supply voltages, and output
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.
7
CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate
that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient
magnitude is the range over which the common mode is slewed.
8
Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in the signal data rate. See Figure 6 through Figure 8 for
information on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating per-channel supply
current for a given data rate.
Rev. 0 | Page 4 of 20
ADuM3200/ADuM3201
ELECTRICAL CHARACTERISTICS—3 V OPERATION
All voltages are relative to their respective ground. 2.7 V ≤ VDD1 ≤ 3.6 V, 2.7 V ≤ VDD2 ≤ 3.6 V. All minimum/maximum specifications
apply over the entire recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C,
VDD1 = VDD2 = 3.0 V.
Table 2.
Parameter
DC SPECIFICATIONS
Input Supply Current, per Channel, Quiescent
Output Supply Current, per Channel, Quiescent
ADuM3200, Total Supply Current, Two Channels 1
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BR and CR Grades Only)
VDD1 Supply Current
VDD2 Supply Current
25 Mbps (CR Grade Only)
VDD1 Supply Current
VDD2 Supply Current
ADuM3201, Total Supply Current, Two Channels1
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BR and CR Grades Only)
VDD1 Supply Current
VDD2 Supply Current
25 Mbps (CR Grade Only)
VDD1 Supply Current
VDD2 Supply Current
For All Models
Input Currents
Logic High Input Threshold
Symbol
Typ
Max
Unit
IDDI (Q)
IDDO (Q)
0.3
0.3
0.5
0.5
mA
mA
IDD1 (Q)
IDD2 (Q)
0.8
0.7
1.3
1.0
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
IDD1 (10)
IDD2 (10)
2.0
1.1
3.2
1.7
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDD1 (25)
IDD2 (25)
4.3
1.8
6.4
2.4
mA
mA
12.5 MHz logic signal freq.
12.5 MHz logic signal freq.
IDD1 (Q)
IDD2 (Q)
0.7
0.8
1.3
1.6
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
IDD1 (10)
IDD2 (10)
1.5
1.9
2.1
2.4
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDD1 (25)
IDD2 (25)
3.0
3.6
4.2
5.1
mA
mA
12.5 MHz logic signal freq.
12.5 MHz logic signal freq.
+0.01
+10
μA
V
0 ≤ VIA, VIB, ≤ VDD1 or VDD2
0.3 VDD1,
VDD2
V
IIA, IIB
VIH
Logic Low Input Threshold
VIL
Logic High Output Voltages
VOAH
VOBH
Logic Low Output Voltages
SWITCHING SPECIFICATIONS
ADuM320xAR
Minimum Pulse Width 2
Maximum Data Rate 3
Propagation Delay 4
Pulse-Width Distortion, |tPLH − tPHL|4
Propagation Delay Skew 5
Channel-to-Channel Matching 6
Output Rise/Fall Time (10% to 90%)
Min
−10
0.7 VDD1,
VDD2
VDD1,
VDD2 − 0.1
VDD1,
VDD2 − 0.5
VOAL
VOBL
3.0
V
IOx = −20 μA, VIx = VIxH
2.8
V
IOx = −4 mA, VIx = VIxH
0.1
0.1
0.4
V
V
V
IOx = 20 μA, VIx = VIxL
IOx = 400 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
1000
ns
Mbps
ns
ns
ns
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
0.0
0.04
0.2
PW
tPHL, tPLH
PWD
tPSK
tPSKCD/OD
tR/tF
Test Conditions
1
20
150
40
100
50
10
Rev. 0 | Page 5 of 20
ADuM3200/ADuM3201
Parameter
ADuM320xBR
Minimum Pulse Width2
Maximum Data Rate3
Propagation Delay4
Pulse-Width Distortion, |tPLH −tPHL|4
Change vs. Temperature
Propagation Delay Skew5
Channel-to-Channel Matching,
Codirectional Channels6
Channel-to-Channel Matching,
Opposing Directional Channels6
Output Rise/Fall Time (10% to 90%)
ADuM320xCR
Minimum Pulse Width2
Maximum Data Rate3
Propagation Delay4
Pulse-Width Distortion, |tPLH − tPHL|4
Change vs. Temperature
Propagation Delay Skew5
Channel-to-Channel Matching,
Codirectional Channels6
Channel-to-Channel Matching,
Opposing Directional Channels6
Output Rise/Fall Time (10% to 90%)
For All Models
Common Mode Transient Immunity
at Logic High Output 7
Common Mode Transient Immunity
at Logic Low Output7
Refresh Rate
Input Dynamic Supply Current, per Channel8
Output Dynamic Supply Current, per Channel8
Symbol
Min
Typ
PW
Max
Unit
Test Conditions
100
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPSK
tPSKCD
22
3
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
22
ns
CL = 15 pF, CMOS signal levels
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPHL, tPLH
PWD
10
20
60
3
5
tR/tF
3.0
PW
tPSK
tPSKCD
16
3
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
16
ns
CL = 15 pF, CMOS signal levels
3.0
ns
CL = 15 pF, CMOS signal levels
VIx = VDD1, VDD2, VCM = 1000 V,
transient magnitude = 800 V
VIx = 0 V, VCM = 1000 V,
transient magnitude = 800 V
tPHL, tPLH
PWD
25
20
20
50
40
55
3
5
tR/tF
|CMH|
25
35
kV/μs
|CML|
25
35
kV/μs
1.1
0.10
0.03
Mbps
mA/Mbps
mA/Mbps
fr
IDDI (D)
IDDO (D)
1
The supply current values for both channels are combined when running at identical data rates. Output supply current values are specified with no output load
present. 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 IDD1 and IDD2 supply currents as a function of data rate for ADuM3200 and ADuM3201 channel configurations.
2
The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed.
3
The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed.
4
tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
5
tPSK is the magnitude of the worst-case difference in tPHL and/or tPLH that is measured between units at the same operating temperature, supply voltages, and output
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.
7
CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate
that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient
magnitude is the range over which the common mode is slewed.
8
Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in the signal data rate. See Figure 6 through Figure 8 for
information on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating per-channel supply
current for a given data rate.
Rev. 0 | Page 6 of 20
ADuM3200/ADuM3201
ELECTRICAL CHARACTERISTICS—MIXED 5 V/3 V OR 3 V/5 V OPERATION
All voltages are relative to their respective ground. 5 V/3 V operation: 4.5 V ≤ VDD1 ≤ 5.5 V, 2.7 V ≤ VDD2 ≤ 3.6 V. 3 V/5 V operation:
2.7 V ≤ VDD1 ≤ 3.6 V, 4.5 V ≤ VDD2 ≤ 5.5 V. All minimum/maximum specifications apply over the entire recommended operating range,
unless otherwise noted. All typical specifications are at TA = 25°C; VDD1 = 3.0 V, VDD2 = 5.0 V; or VDD1 = 5.0 V, VDD2 = 3.0 V.
Table 3.
Parameter
DC SPECIFICATIONS
Input Supply Current, per Channel, Quiescent
5 V/3 V Operation
3 V/5 V Operation
Output Supply Current, per Channel, Quiescent
5 V/3 V Operation
3 V/5 V Operation
ADuM3200, Total Supply Current, Two Channels 1
DC to 2 Mbps
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
10 Mbps (BR and CR Grades Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
25 Mbps (CR Grade Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
ADuM3201, Total Supply Current, Two Channels1
DC to 2 Mbps
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
10 Mbps (BR and CR Grades Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
Symbol
Min
Typ
Max
Unit
Test Conditions
0.4
0.3
0.8
0.5
mA
mA
0.3
0.5
0.5
0.6
mA
mA
1.3
0.8
1.7
1.3
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
0.7
1.0
1.0
1.6
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
3.5
2.0
4.6
3.2
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
1.1
1.7
1.7
2.8
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
7.7
4.3
10.0
6.4
mA
mA
12.5 MHz logic signal freq.
12.5 MHz logic signal freq.
1.8
3.1
2.4
3.9
mA
mA
12.5 MHz logic signal freq.
12.5 MHz logic signal freq.
1.1
0.7
1.5
1.3
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
0.8
1.3
1.6
1.8
mA
mA
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
2.6
1.5
3.4
2.1
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
1.9
3.1
2.4
4.0
mA
mA
5 MHz logic signal freq.
5 MHz logic signal freq.
IDDI (Q)
IDDO (Q)
IDD1 (Q)
IDD2 (Q)
IDD1 (10)
IDD2 (10)
IDD1 (25)
IDD2 (25)
IDD1 (Q)
IDD2 (Q)
IDD1 (10)
IDD2 (10)
Rev. 0 | Page 7 of 20
ADuM3200/ADuM3201
Parameter
25 Mbps (CR Grade Only)
VDD1 Supply Current
5 V/3 V Operation
3 V/5 V Operation
VDD2 Supply Current
5 V/3 V Operation
3 V/5 V Operation
For All Models
Input Currents
Logic High Input Threshold
Logic Low Input Threshold
5 V/3 V Operation
3 V/5 V Operation
Logic High Output Voltages
Logic Low Output Voltages
SWITCHING SPECIFICATIONS
ADuM320xAR
Minimum Pulse Width 2
Maximum Data Rate 3
Propagation Delay 4
Pulse-Width Distortion, |tPLH − tPHL|4
Propagation Delay Skew 5
Channel-to-Channel Matching 6
Output Rise/Fall Time (10% to 90%)
ADuM320xBR
Minimum Pulse Width2
Maximum Data Rate3
Propagation Delay4
Pulse-Width Distortion, |tPLH − tPHL|4
Change vs. Temperature
Propagation Delay Skew5
Channel-to-Channel Matching,
Codirectional Channels6
Channel-to-Channel Matching,
Opposing Directional Channels6
Output Rise/Fall Time (10% to 90%)
5 V/3 V Operation
3 V/5 V Operation
Symbol
Min
Typ
Max
Unit
Test Conditions
5.3
3.0
6.8
4.2
mA
mA
12.5 MHz logic signal freq.
12.5 MHz logic signal freq.
3.6
6.4
5.1
8.3
mA
mA
12.5 MHz logic signal freq.
12.5 MHz logic signal freq.
+0.01
+10
μA
V
0 ≤ VIA, VIB ≤ VDD1 or VDD2
0.3 VDD1,
VDD2
V
IDD1 (25)
IDD2 (25)
IIA, IIB
VIH
−10
0.7 VDD1,
VDD2
VIL
VOAH, VOBH
0.8
0.4
VDD1,
VDD2 − 0.1
VDD1,
VDD2 − 0.5
VOAL, VOBL
VDD1,
VDD2
VDD1,
VDD2 − 0.2
0.0
0.04
0.2
PW
tPHL, tPLH
PWD
tPSK
tPSKCD/OD
tR/tF
1
15
V
V
V
IOx = −20 μA, VIx = VIxH
V
IOx = −4 mA, VIx = VIxH
0.1
0.1
0.4
V
V
V
IOx = 20 μA, VIx = VIxL
IOx = 400 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
1000
ns
Mbps
ns
ns
ns
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
150
40
50
50
10
PW
tPSK
tPSKCD
22
3
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
22
ns
CL = 15 pF, CMOS signal levels
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPHL, tPLH
PWD
100
10
15
55
3
5
tR/tf
3.0
2.5
Rev. 0 | Page 8 of 20
ADuM3200/ADuM3201
Parameter
ADuM320xCR
Minimum Pulse Width2
Maximum Data Rate3
Propagation Delay4
Pulse-Width Distortion, |tPLH – tPHL|4
Change vs. Temperature
Propagation Delay Skew5
Channel-to-Channel Matching,
Codirectional Channels6
Channel-to-Channel Matching,
Opposing Directional Channels6
Output Rise/Fall Time (10% to 90%)
5 V/3 V Operation
3 V/5 V Operation
For All Models
Common-Mode Transient Immunity
at Logic High Output 7
Common-Mode Transient Immunity
at Logic Low Output7
Refresh Rate
5 V/3 V Operation
3 V/5 V Operation
Input Dynamic Supply Current,
per Channel 8
5 V/3 V Operation
3 V/5 V Operation
Output Dynamic Supply Current,
per Channel8
5 V/3 V Operation
3 V/5 V Operation
Symbol
Min
PW
Typ
Max
Unit
Test Conditions
20
50
40
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
tPSK
tPSKCD
15
3
ns
Mbps
ns
ns
ps/°C
ns
ns
tPSKOD
15
ns
CL = 15 pF, CMOS signal levels
3.0
2.5
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
VIx = VDD1, VDD2, VCM = 1000 V,
transient magnitude = 800 V
VIx = 0 V, VCM = 1000 V,
transient magnitude = 800 V
tPHL, tPLH
PWD
25
20
50
3
5
tR/tf
|CMH|
25
35
kV/μs
|CML|
25
35
kV/μs
1.2
1.1
Mbps
Mbps
0.19
0.10
mA/Mbps
mA/Mbps
0.03
0.05
mA/Mbps
mA/Mbps
fr
IDDI (D)
IDDO (D)
1
The supply current values for both channels are combined when running at identical data rates. Output supply current values are specified with no output load
present. 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 IDD1 and IDD2 supply currents as a function of data rate for ADuM3200 and ADuM3201 channel configurations.
2
The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed.
3
The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed.
4
tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
5
tPSK is the magnitude of the worst-case difference in tPHL and/or tPLH that is measured between units at the same operating temperature, supply voltages, and output
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.
7
CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate
that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient
magnitude is the range over which the common mode is slewed.
8
Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in the signal data rate. See Figure 6 through Figure 8 for
information on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating per-channel supply
current for a given data rate.
Rev. 0 | Page 9 of 20
ADuM3200/ADuM3201
PACKAGE CHARACTERISTICS
Table 4.
Parameter
Resistance (Input to Output) 1
Capacitance (Input to Output)1
Input Capacitance
IC Junction-to-Case Thermal Resistance, Side 1
Symbol
RI-O
CI-O
CI
θJCI
IC Junction-to-Case Thermal Resistance, Side 2
θJCO
1
Min
Typ
1012
1.0
4.0
46
41
Max
Unit
Ω
pF
pF
°C/W
Test Conditions
f = 1 MHz
Thermocouple located at center
of package underside
°C/W
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 ADuM3200/ADuM3201 is approved by the following organizations.
Table 5.
UL
Recognized under 1577 Component
Recognition Program 1
2500 V rms isolation voltage
File E214100
1
2
CSA
Approved under CSA Component
Acceptance Notice #5A
File 205078
VDE
Certified according to DIN EN 60747-5-2 (VDE 0884 Part 2):
2003-01 2
Basic insulation, 560 V peak
File 2471900-4880-0001
In accordance with UL1577, each ADuM320x is proof-tested by applying an insulation test voltage ≥ 3000 V rms for 1 second (current leakage detection limit = 5 μA).
In accordance with DIN EN 60747-5-2, each ADuM320x is proof-tested by applying an insulation test voltage ≥ 1050 V peak for 1 second (partial discharge detection
limit = 5 pC).
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 6.
Parameter
Rated Dielectric Insulation Voltage
Minimum External Air Gap (Clearance)
Symbol
L(I01)
Value
2500
4.90 min
Unit
V rms
mm
Minimum External Tracking (Creepage)
L(I02)
4.01 min
mm
Minimum Internal Gap (Internal Clearance)
Tracking Resistance (Comparative Tracking Index)
Isolation Group
CTI
0.017 min
>175
IIIa
mm
V
Rev. 0 | Page 10 of 20
Conditions
1-minute duration
Measured from input terminals to output terminals,
shortest distance through air
Measured from input terminals to output terminals,
shortest distance path along body
Insulation distance through insulation
DIN IEC 112/VDE 0303 Part 1
Material Group (DIN VDE 0110, 1/89, Table 1)
ADuM3200/ADuM3201
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 1)
Maximum Working Insulation Voltage
Input-to-Output Test Voltage, Method b1
VIORM × 1.875 = VPR, 100% Production Test, tm = 1 sec, Partial Discharge < 5 pC
Input-to-Output Test Voltage, Method a
After Environmental Tests Subgroup 1
VIORM × 1.6 = VPR, tm = 60 sec, Partial Discharge < 5 pC
After Input and/or Safety Test Subgroup 2/3
VIORM × 1.2 = VPR, tm = 60 sec, Partial Discharge < 5 pC
Highest Allowable Overvoltage (Transient Overvoltage, tTR = 10 sec)
Safety-Limiting Values (Maximum Value Allowed in the Event of a Failure; also See Figure 3)
Case Temperature
Side 1 Current
Side 2 Current
Insulation Resistance at TS, VIO = 500 V
Symbol
Characteristic
Unit
VIORM
VPR
I−IV
I−III
I−II
40/105/21
2
560
1050
V peak
V peak
896
V peak
VTR
672
4000
V peak
V peak
TS
IS1
IS2
RS
150
160
170
>109
°C
mA
mA
Ω
VPR
Note that the “*” marking on the package denotes DIN EN 60747-5-2 approval for a 560 V peak working voltage.
This isolator is suitable for basic isolation only within the safety limit data. Maintenance of the safety data is ensured by protective circuits.
200
RECOMMENDED OPERATING CONDITIONS
160
Table 8.
140
80
Parameter
Operating Temperature
Supply Voltages 1
Input Signal Rise and Fall Times
60
1
SIDE #2
SIDE #1
120
100
40
20
0
0
50
100
150
CASE TEMPERATURE (°C)
200
Symbol
TA
VDD1, VDD2
Min
−40
2.7
Max
+105
5.5
1.0
Unit
°C
V
ms
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.
05927-003
SAFETY-LIMITING CURRENT (mA)
180
Figure 3. Thermal Derating Curve, Dependence of SafetyLimiting Values on Case Temperature, per DIN EN 60747-5-2
Rev. 0 | Page 11 of 20
ADuM3200/ADuM3201
ABSOLUTE MAXIMUM RATINGS
Ambient temperature = 25°C, unless otherwise noted.
Table 9.
Parameter
Storage Temperature
Ambient Operating Temperature
Supply Voltages 1
Input Voltage1, 2
Output Voltage1, 2
Average Output Current, per Pin 3
Common-Mode Transients 4
Symbol
TST
TA
VDD1, VDD2
VIA, VIB
VOA, VOB
IO
CMH, CML
Min
−55
−40
−0.5
−0.5
−0.5
−35
−100
Max
+150
+105
+7.0
VDDI + 0.5
VDDO + 0.5
+35
+100
Unit
°C
°C
V
V
V
mA
kV/μs
1
All voltages are relative to their respective ground.
VDDI and VDDO refer to the supply voltages on the input and output sides of a given channel, respectively.
3
See Figure 3 for maximum rated current values for various temperatures.
4
Refers to common-mode transients across the insulation barrier. Common-mode transients exceeding the Absolute Maximum Rating can cause latch-up or
permanent damage.
2
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only;
Functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is
not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Table 10. ADuM3200 Truth Table (Positive Logic)
VIA Input
H
L
H
L
X
VIB Input
H
L
L
H
X
VDD1 State
Powered
Powered
Powered
Powered
Unpowered
VDD2 State
Powered
Powered
Powered
Powered
Powered
VOA Output
H
L
H
L
H
VOB Output
H
L
L
H
H
X
X
Powered
Unpowered
Indeterminate
Indeterminate
Notes
Outputs return to the input state within
1 μs of VDDI power restoration.
Outputs return to the input state within
1 μs of VDDO power restoration.
Table 11. ADuM3201 Truth Table (Positive Logic)
VIA Input
H
L
H
L
X
VIB Input
H
L
L
H
X
VDD1 State
Powered
Powered
Powered
Powered
Unpowered
VDD2 State
Powered
Powered
Powered
Powered
Powered
VOA Output
H
L
H
L
Indeterminate
VOB Output
H
L
L
H
H
X
X
Powered
Unpowered
H
Indeterminate
Rev. 0 | Page 12 of 20
Notes
Outputs return to the input state within
1 μs of VDDI power restoration.
Outputs return to the input state within
1 μs of VDDO power restoration.
ADuM3200/ADuM3201
VIA 2
VIB 3
ADuM3200
8
VDD2
VDD1 1
7
VOA
VOA 2
6 VOB
TOP VIEW
GND1 4 (Not to Scale) 5 GND2
VIB 3
ADuM3201
8
VDD2
7
VIA
6 VOB
TOP VIEW
GND1 4 (Not to Scale) 5 GND2
05927-004
VDD1 1
Figure 4. ADuM3200 Pin Configuration
05927-005
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Figure 5. ADuM3201 Pin Configuration
Table 12. ADuM3200 Pin Function Descriptions
Table 13. ADuM3201 Pin Function Descriptions
Pin
No.
1
2
3
4
5
6
7
8
Pin
No.
1
2
3
4
5
6
7
8
Mnemonic
VDD1
VIA
VIB
GND1
GND2
VOB
VOA
VDD2
Function
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
Logic Input A.
Logic Input B.
Ground 1. Ground reference for Isolator Side 1.
Ground 2. Ground reference for Isolator Side 2.
Logic Output B.
Logic Output A.
Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
Rev. 0 | Page 13 of 20
Mnemonic
VDD1
VOA
VIB
GND1
GND2
VOB
VIA
VDD2
Function
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
Logic Output A.
Logic Input B.
Ground 1. Ground reference for Isolator Side 1.
Ground 2. Ground reference for Isolator Side 2.
Logic Output B.
Logic Input A.
Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
ADuM3200/ADuM3201
TYPICAL PERFORMANCE CHARACTERISTICS
10
20
15
CURRENT (mA)
CURRENT/CHANNEL (mA)
8
6
4
10
5V
5V
5
2
3V
0
10
20
DATA RATE (Mbps)
30
0
05927-006
0
0
30
Figure 9. Typical ADuM3200 VDD1 Supply Current vs.
Data Rate for 5 V and 3 V Operation
4
4
3
3
CURRENT (mA)
CURRENT/CHANNEL (mA)
Figure 6. Typical Input Supply Current per Channel vs.
Data Rate for 5 V and 3 V Operation
10
20
DATA RATE (Mbps)
05927-009
3V
2
5V
5V
2
3V
1
1
0
10
20
DATA RATE (Mbps)
30
0
05927-007
0
0
Figure 7. Typical Output Supply Current per Channel vs.
Data Rate for 5 V and 3 V Operation (No Output Load)
10
20
DATA RATE (Mbps)
30
05927-010
3V
Figure 10. Typical ADuM3200 VDD2 Supply Current vs.
Data Rate for 5 V and 3 V Operation
4
10
CURRENT (mA)
2
5V
6
4
5V
1
2
3V
0
0
10
20
DATA RATE (Mbps)
30
Figure 8. Typical Output Supply Current per Channel vs.
Data Rate for 5 V and 3 V Operation (15 pF Output Load)
0
0
10
20
DATA RATE (Mbps)
30
Figure 11. Typical ADuM3201 VDD1 or VDD2 Supply Current vs.
Data Rate for 5 V and 3 V Operation
Rev. 0 | Page 14 of 20
05927-011
3V
05927-008
CURRENT/CHANNEL (mA)
8
3
ADuM3200/ADuM3201
APPLICATION INFORMATION
PC BOARD LAYOUT
The ADuM320x digital isolators require no external interface
circuitry for the logic interfaces. Power supply bypassing is
strongly recommended at the input and output supply pins. The
capacitor value should be between 0.01 μF and 0.1 μF. The total
lead length between both ends of the capacitor and the input
power supply pin should not exceed 20 mm.
Positive and negative logic transitions at the isolator input cause
narrow (~1 ns) pulses to be sent to the decoder via the transformer.
The decoder is bistable and is therefore either set or reset by the
pulses, indicating input logic transitions. In the absence of logic
transitions of more than 2 μs at the input, a periodic set of
refresh pulses indicative of the correct input state are sent to
ensure dc correctness at the output. If the decoder receives no
internal pulses for more than about 5 μs, the input side is
assumed to be unpowered or nonfunctional, in which case,
the isolator output is forced to a default state (see Table 8) by
the watchdog timer circuit.
System-level ESD reliability (for example, per IEC 61000-4-x)
is highly dependent on system design which varies widely by
application. The ADuM320x incorporate many enhancements
to make ESD reliability less dependent on system design. The
enhancements include:
• ESD protection cells added to all input/output interfaces.
• Key metal trace resistances reduced using wider geometry
and paralleling of lines with vias.
• The SCR effect inherent in CMOS devices minimized by use
of guarding and isolation technique between PMOS and
NMOS devices.
• Areas of high electric field concentration eliminated using
45° corners on metal traces.
• Supply pin overvoltage prevented with larger ESD clamps
between each supply pin and its respective ground.
While the ADuM320x improve system-level ESD reliability,
they are no substitute for a robust system-level design. See
Application Note AN-793, ESD/Latch-Up Considerations with
iCoupler Isolation Products for detailed recommendations on
board layout and system-level design.
PROPAGATION DELAY-RELATED PARAMETERS
Propagation delay is a parameter that describes the time it takes
a logic signal to propagate through a component. The propagation
delay to a logic low output can differ from the propagation
delay to a logic high.
50%
OUTPUT (VOX)
tPHL
50%
05927-012
tPLH
Propagation delay skew refers to the maximum amount that the
propagation delay differs between multiple ADuM320x
components operating under the same conditions.
DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY
SYSTEM-LEVEL ESD CONSIDERATIONS AND
ENHANCEMENTS
INPUT (VIX)
Channel-to-channel matching refers to the maximum amount
that the propagation delay differs between channels within a
single ADuM320x component.
The ADuM320x are extremely immune to external magnetic
fields. The limitation on the ADuM320x’s magnetic field
immunity is set by the condition in which induced voltage in
the transformer’s receiving coil is sufficiently large to either
falsely set or reset the decoder. The following analysis defines
the conditions under which this can occur. The 3 V operating
condition of the ADuM320x is examined because it represents
the most susceptible mode of operation.
The pulses at the transformer output have an amplitude greater
than 1.0 V. The decoder has a sensing threshold at about 0.5 V,
therefore establishing a 0.5 V margin in which induced voltages
can be tolerated. The voltage induced across the receiving coil is
given by
V = (−dβ/dt) ∑π rn2, n = 1, 2, . . . , N
where:
β is the magnetic flux density (gauss).
N is the number of turns in the receiving coil.
rn is the radius of the nth turn in the receiving coil (cm).
Given the geometry of the receiving coil in the ADuM320x and
an imposed requirement that the induced voltage be at most
50% of the 0.5 V margin at the decoder, a maximum allowable
magnetic field is calculated, as shown in Figure 13.
Figure 12. Propagation Delay Parameters
Pulse-width distortion is the maximum difference between
these two propagation delay values and is an indication of how
accurately the input signal’s timing is preserved.
Rev. 0 | Page 15 of 20
ADuM3200/ADuM3201
Note that at combinations of strong magnetic fields and high
frequencies, any loops formed by printed circuit board traces
could induce sufficiently large error voltages to trigger the
threshold of succeeding circuitry. Care should be taken in the
layout of such traces to avoid this possibility.
10
1
POWER CONSUMPTION
0.1
The supply current at a given channel of the ADuM320x
isolator is a function of the supply voltage, the channel’s data
rate, and the channel’s output load.
0.01
For each input channel, the supply current is given by
0.001
1k
10k
100k
1M
10M
MAGNETIC FIELD FREQUENCY (Hz)
100M
05927-013
MAXIMUM ALLOWABLE MAGNETIC FLUX
DENSITY (kgauss)
100
Figure 13. Maximum Allowable External Magnetic Flux Density
For example, at a magnetic field frequency of 1 MHz, the
maximum allowable magnetic field of 0.2 kgauss induces a
voltage of 0.25 V at the receiving coil. This is about 50% of the
sensing threshold and does not cause a faulty output transition.
Similarly, if such an event were to occur during a transmitted
pulse (and had the worst-case polarity), it would reduce the
received pulse from >1.0 V to 0.75 V—still well above the 0.5 V
sensing threshold of the decoder.
The preceding magnetic flux density values correspond to
specific current magnitudes at given distances away from the
ADuM320x transformers. Figure 14 expresses these allowable
current magnitudes as a function of frequency for selected
distances. As seen, the ADuM320x are extremely immune and
can be affected only by extremely large currents operated at
high frequency and very close to the component. For the 1 MHz
example, one would have to place a 0.5 kA current 5 mm away
from the ADuM320x to affect the component’s operation.
f ≤ 0.5fr
IDDI = IDDI (D) × (2f – fr) + IDDI (Q)
f > 0.5fr
for each output channel, the supply current is given by
IDDO = IDDO (Q)
f ≤ 0.5fr
−3
IDDO = (IDDO (D) + (0.5 × 10 ) × CLVDDO) × (2f – fr) + IDDO (Q)
f > 0.5fr
where:
IDDI (D), IDDO (D) are the input and output dynamic supply currents
per channel (mA/Mbps).
CL is the output load capacitance (pF).
VDDO is the output supply voltage (V).
f is the input logic signal frequency (MHz, half of the input data
rate, NRZ signaling).
fr is the input stage refresh rate (Mbps).
IDDI (Q), IDDO (Q) are the specified input and output quiescent
supply currents (mA).
DISTANCE = 1m
To calculate the total IDD1 and IDD2 supply current, the supply
currents for each input and output channel corresponding to
IDD1 and IDD2 are calculated and totaled. Figure 6 provides perchannel input supply currents as a function of data rate. Figure 7
and Figure 8 provide per-channel output supply currents as a
function of data rate for an unloaded output condition and for a
15 pF output condition, respectively. Figure 9 through Figure 11
provide total IDD1 and IDD2 supply current as a function of data
rate for ADuM3200 and ADuM3201 channel configurations.
100
10
DISTANCE = 100mm
1
DISTANCE = 5mm
0.1
0.01
1k
10k
100k
1M
10M
MAGNETIC FIELD FREQUENCY (Hz)
100M
05927-014
MAXIMUM ALLOWABLE CURRENT (kA)
1000
IDDI = IDDI (Q)
Figure 14. Maximum Allowable Current for Various
Current-to-ADuM320x Spacings
Rev. 0 | Page 16 of 20
ADuM3200/ADuM3201
OUTLINE DIMENSIONS
5.00 (0.1968)
4.80 (0.1890)
8
4.00 (0.1574)
3.80 (0.1497) 1
5
6.20 (0.2440)
4 5.80 (0.2284)
1.27 (0.0500)
BSC
0.25 (0.0098)
0.10 (0.0040)
1.75 (0.0688)
1.35 (0.0532)
0.51 (0.0201)
COPLANARITY
SEATING 0.31 (0.0122)
0.10
PLANE
0.50 (0.0196)
× 45°
0.25 (0.0099)
8°
0.25 (0.0098) 0° 1.27 (0.0500)
0.40 (0.0157)
0.17 (0.0067)
COMPLIANT TO JEDEC STANDARDS MS-012-AA
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
Figure 15. 8-Lead Standard Small Outline Package [SOIC_N]
Narrow Body (R-8)
Dimensions shown in millimeters (inches)
ORDERING GUIDE
Model
ADuM3200ARZ 2
ADuM3200ARZ-RL72
ADuM3200BRZ2
ADuM3200BRZ-RL72
ADuM3200CRZ2
ADuM3200CRZ-RL72
ADuM3201ARZ2
ADuM3201ARZ-RL72
ADuM3201BRZ2
ADuM3201BRZ-RL72
ADuM3201CRZ2
ADuM3201CRZ-RL72
1
2
Number
of Inputs,
VDD1 Side
2
2
2
2
2
2
1
1
1
1
1
1
Number
of Inputs,
VDD2 Side
0
0
0
0
0
0
1
1
1
1
1
1
Maximum
Data Rate
(Mbps)
1
1
10
10
25
25
1
1
10
10
25
25
Maximum
Propagation
Delay, 5 V (ns)
150
150
50
50
45
45
150
150
50
50
45
45
R-8 = 8-lead narrow body SOIC_N.
Z = Pb-free part.
Rev. 0 | Page 17 of 20
Maximum
Pulse-Width
Distortion (ns)
40
40
3
3
3
3
40
40
3
3
3
3
Temperature
Range (°C)
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
Package
Option 1
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
R-8
ADuM3200/ADuM3201
NOTES
Rev. 0 | Page 18 of 20
ADuM3200/ADuM3201
NOTES
Rev. 0 | Page 19 of 20
ADuM3200/ADuM3201
NOTES
©2006 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D05927-0-7/06(0)
T
T
Rev. 0 | Page 20 of 20