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PDF ADUM4400 Data sheet ( Hoja de datos )
| Número de pieza | ADUM4400 | |
| Descripción | (ADUM4400 - ADUM4402) 5 KV RMS Quad-Channel Digital Isolators | |
| Fabricantes | Analog Devices | |
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5 kV RMS Quad-Channel Digital Isolators
ADuM4400/ADuM4401/ADuM4402
FEATURES
GENERAL DESCRIPTION
Enhanced system-level ESD performance per IEC 61000-4-x
Safety and regulatory approvals
UL recognition 5000 V rms for 1 minute (double protection)
CSA Component Acceptance Notice #5A (pending)
IEC 60950-1: 600 V rms (reinforced)
IEC 60601-1: 250 V rms (reinforced)
VDE Certificate of Conformity (pending)
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 846 V peak (reinforced)
Low power operation
5 V operation
1.4 mA per channel maximum @ 0 Mbps to 2 Mbps
4.3 mA per channel maximum @ 10 Mbps
34 mA per channel maximum @ 90 Mbps
3 V operation
0.9 mA per channel maximum @ 0 Mbps to 2 Mbps
2.4 mA per channel maximum @ 10 Mbps
20 mA per channel maximum @ 90 Mbps
Bidirectional communication
3 V/5 V level translation
High temperature operation: 105°C
High data rate: dc to 90 Mbps (NRZ)
Precise timing characteristics
2 ns maximum pulse width distortion
2 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
Output enable function
16-lead SOIC wide body package (RoHS-compliant)
APPLICATIONS
The ADuM440x1 are 4-channel digital isolators based on the
Analog Devices, Inc., iCoupler® technology. Combining high
speed CMOS and monolithic air core transformer technology,
these isolation components provide outstanding performance
characteristics that are superior to the alternatives, such as
optocoupler devices and other integrated couplers.
The ADuM440x isolators provide four independent isolation
channels in a variety of channel configurations and data rates
(see the Ordering Guide). All models 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 ADuM440x isolators have a patented refresh feature that
ensures dc correctness in the absence of input logic transitions
and during power-up/power-down conditions.
This family of isolators, like many Analog Devices isolators,
offers very low power consumption, consuming one-tenth to
one-sixth the power of comparable isolators at comparable data
rates up to 10 Mbps. All models of the ADuM440x provide low
pulse width distortion (<2 ns for C grade). In addition, every
model has an input glitch filter to protect against extraneous noise
disturbances.
The ADuM440x contain circuit and layout enhancements to help
achieve system-level IEC 61000-4-x compliance (ESD/burst/surge).
The precise capability in these tests for the ADuM440x are strongly
determined by the design and layout of the user’s board or module.
For more information, see the AN-793 Application Note,
ESD/Latch-Up Considerations with iCoupler Isolation Products.
General-purpose, high voltage, multichannel isolation
Medical equipment
Motor drives
1 Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329. Other patents
pending.
Power supplies
FUNCTIONAL BLOCK DIAGRAMS
VDD1 1
GND1 2
VIA 3
VIB 4
VIC 5
VID 6
NC 7
GND1 8
ENCODE
ADuM4400 16 VDD2
15 GND2
DECODE
14 VOA
ENCODE
DECODE
13 VOB
ENCODE
DECODE
12 VOC
ENCODE
DECODE
11 VOD
10 VE2
9 GND2
Figure 1. ADuM4400
VDD1 1
GND1 2
VIA 3
VIB 4
VIC 5
VOD 6
VE1 7
GND1 8
ENCODE
ADuM4401 16 VDD2
15 GND2
DECODE
14 VOA
ENCODE
DECODE
13 VOB
ENCODE
DECODE
12 VOC
DECODE
ENCODE
11 VID
10 VE2
9 GND2
Figure 2. ADuM4401
VDD1 1
GND1 2
VIA 3
VIB 4
VOC 5
VOD 6
VE1 7
GND1 8
ENCODE
ADuM4402 16 VDD2
15 GND2
DECODE
14 VOA
ENCODE
DECODE
13 VOB
DECODE
ENCODE
12 VIC
DECODE
ENCODE
Figure 3. ADuM4402
11 VID
10 VE2
9 GND2
Rev. 0
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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
©2009 Analog Devices, Inc. All rights reserved.
1 page  
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ADuM4400/ADuM4401/ADuM4402
ELECTRICAL CHARACTERISTICS—MIXED 5 V/3 V OPERATION
All typical specifications are at TA = 25°C, VDD1 = 5 V, VDD2 = 3.0 V. Minimum/maximum specifications apply over the entire
recommended operation range: 4.5 V ≤ VDD1 ≤ 5.5 V, 2.7 V ≤ VDD2 ≤ 3.6 V, and −40°C ≤ TA ≤ 105°C, unless otherwise noted. Switching
specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted.
Table 7.
7 Codirectional 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 matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier.
Parameter
SWITCHING SPECIFICATIONS
Data Rate
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Pulse Width
Propagation Delay Skew
Channel Matching
Codirectional
Opposing-Direction
Symbol
tPHL, tPLH
PWD
PW
tPSK
tPSKCD
tPSKOD
A Grade
Min Typ Max
50 70
11
1000
1
50
40
50
50
50
B Grade
Min Typ Max
15 35
5
100
10
50
3
22
3
6
C Grade
Min Typ Max
90
20 30 40
0.5 2
3
8.3 11.1
14
2
5
Unit
Mbps
ns
ns
ps/°C
ns
ns
ns
ns
Test Conditions
Within PWD limit
50% input to 50% output
|tPLH − tPHL|
Within PWD limit
Between any two units
Table 8.
Parameter
SUPPLY CURRENT
ADuM4400
ADuM4401
ADuM4402
1 Mbps—A, B, C Grades 10 Mbps—B, C Grades 90 Mbps—C Grade
Symbol Min Typ Max Min Typ Max Min Typ Max Unit Test Conditions
IDD1
2.9 3.5
9.0 11.6
72 100 mA
IDD2
0.7 1.2
1.8 2.3
11 15 mA
IDD1
2.5 3.2
7.4 10.6
59 82 mA
IDD2
0.9 1.5
2.5 3.3
17 24 mA
IDD1
2.0 2.8
6.0 7.5
46 62 mA
IDD2
1.2 1.7
3.3 4.4
24 39 mA
Table 9. For All Models
Parameter
Symbol Min
Typ Max Unit
Test Conditions
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltage
Input Current per Channel
Supply Current per Channel
VIH 2.0
V
VIL 0.8 V
VOH
VDDx − 0.1
3.0
VDDx − 0.4
2.8
V
V
II −10
+0.01 +10 μA
IOx = −20 μA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
0 V ≤ VI x ≤ VDDx
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
IDDI(Q)
IDDO(Q)
IDDI(D)
IDDO(D)
0.57 0.83 mA
0.29 0.27 mA
0.20 mA/Mbps
0.03 mA/Mbps
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity1
tR/tF
|CM|
25
3
35
ns
kV/μs
10% to 90%
VIx = VDDx, VCM = 1000 V,
transient magnitude = 800 V
Output Disable Propagation Delay
Output Enable Propagation Delay
Refresh Rate
tPHZ,tPLH
tPZH,tPZL
fr
6 8 ns
6 8 ns
1.2 Mbps
High/low-to-high impedance
High impedance-to-high/low
1|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD. The common-mode voltage slew rates apply to both
rising and falling common-mode voltage edges.
Rev. 0 | Page 5 of 20
5 Page 
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ADuM4400/ADuM4401/ADuM4402
VDD1
GND1
VIA
VIB
VIC
VOD
VE1
GND1
1
2
3
4
5
6
7
8
ADuM4401
TOP VIEW
(Not to Scale)
16 VDD2
15 GND2
14 VOA
13 VOB
12 VOC
11 VID
10 VE2
9 GND2
NOTES
1. PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED,
AND CONNECTING BOTH TO GND1 IS RECOMMENDED.
2. PIN 9 AND PIN 15 ARE INTERNALLY CONNECTED,
AND CONNECTING BOTH TO GND2 IS RECOMMENDED.
Figure 6. ADuM4401 Pin Configuration
Table 22. ADuM4401 Pin Function Descriptions
Pin No. Mnemonic Description
1 VDD1 Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
2
GND1
Ground 1. Ground reference for isolator Side 1.
3 VIA
Logic Input A.
4 VIB
Logic Input B.
5 VIC
Logic Input C.
6 VOD Logic Output D.
7 VE1
Output Enable. Active high logic input. VOx Side 1 outputs are enabled when VE1 is high or disconnected. VOX Side 1
outputs are disabled when VE1 is low. In noisy environments, connecting VE1 to an external logic high or low is
recommended.
8
GND1
Ground 1. Ground reference for isolator Side 1.
9
GND2
Ground 2. Ground reference for isolator Side 2.
10 VE2
Output Enable 2. Active high logic input. VOx outputs on Side 2 are enabled when VE2 is high or disconnected.
VOx Side 2 outputs are disabled when VE2 is low. In noisy environments, connecting VE2 to an external logic high or low
is recommended.
11 VID
Logic Input D.
12 VOC
Logic Output C.
13 VOB
Logic Output B.
14 VOA
Logic Output A.
15
GND2
Ground 2. Ground reference for isolator Side 2.
16 VDD2
Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
Rev. 0 | Page 11 of 20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet ADUM4400.PDF ] | |
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