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ADUM3402 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADUM3402
Beschreibung (ADUM3400 - ADUM3402) Digital Isolators
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 24 Seiten
ADUM3402 Datasheet, Funktion
www.DataSheet4U.com
Quad-Channel, Digital Isolators,
Enhanced System-Level ESD Reliability
ADuM3400/ADuM3401/ADuM3402
FEATURES
Enhanced system-level ESD performance per IEC 61000-4-x
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, Pb-free package
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; EN 60950: 2000
VIORM = 560 V peak
APPLICATIONS
General-purpose multichannel isolation
SPI® interface/data converter isolation
RS-232/RS-422/RS-485 transceivers
Industrial field bus isolation
GENERAL DESCRIPTION
The ADuM340x1 are 4-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
characteristics superior to alternatives such as optocoupler devices.
iCoupler devices remove the design difficulties commonly
associated with optocouplers. 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 ADuM340x isolators provide three 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
ADuM340x 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 ADuM140x isolators, the ADuM340x
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 ADuM140x or ADuM340x 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.
1 Protected by U.S. Patents 5,952,849 and 6,873,065. Other patents pending.
FUNCTIONAL BLOCK DIAGRAMS
VDD1 1
GND1 2
VIA 3
VIB 4
ENCODE
ENCODE
DECODE
DECODE
16 VDD2
15 GND2
14 VOA
13 VOB
VIC 5
ENCODE
DECODE
12 VOC
VID 6
NC 7
GND1 8
ENCODE
DECODE
11 VOD
10 VE2
9 GND2
Figure 1. ADuM3400 Functional Block Diagram
VDD1 1
GND1 2
VIA 3
VIB 4
ENCODE
ENCODE
DECODE
DECODE
16 VDD2
15 GND2
14 VOA
13 VOB
VIC 5
VOD 6
VE1 7
GND1 8
ENCODE
DECODE
DECODE
ENCODE
12 VOC
11 VID
10 VE2
9 GND2
Figure 2. ADuM3401 Functional Block Diagram
VDD1 1
GND1 2
VIA 3
VIB 4
ENCODE
ENCODE
DECODE
DECODE
16 VDD2
15 GND2
14 VOA
13 VOB
VOC 5
VOD 6
VE1 7
GND1 8
DECODE
DECODE
ENCODE
ENCODE
12 VIC
11 VID
10 VE2
9 GND2
Figure 3. ADuM3402 Functional Block Diagram
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
©2006 Analog Devices, Inc. All rights reserved.






ADUM3402 Datasheet, Funktion
ADuM3400/ADuM3401/ADuM3402
ELECTRICAL CHARACTERISTICS—3 V OPERATION1
2.7 V ≤ VDD1 ≤ 3.6 V, 2.7 V ≤ VDD2 ≤ 3.6 V; all minimum/maximum specifications apply over the entire recommended operation 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
ADuM3400, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BRW and CRW Grades Only)
VDD1 Supply Current
VDD2 Supply Current
90 Mbps (CRW Grade Only)
VDD1 Supply Current
VDD2 Supply Current
ADuM3401, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 Supply Current
VDD2 Supply Current
10 Mbps (BRW and CRW Grades Only)
VDD1 Supply Current
VDD2 Supply Current
90 Mbps (CRW Grade Only)
VDD1 Supply Current
VDD2 Supply Current
ADuM3402, Total Supply Current, Four Channels2
DC to 2 Mbps
VDD1 or VDD2 Supply Current
10 Mbps (BRW and CRW Grades Only)
VDD1 or VDD2 Supply Current
90 Mbps (CRW Grade Only)
VDD1 or VDD2 Supply Current
For All Models
Input Currents
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
Logic Low Output Voltages
SWITCHING SPECIFICATIONS
ADuM340xARW
Minimum Pulse Width3
Maximum Data Rate4
Propagation Delay5
Pulse-Width Distortion, |tPLH − tPHL|5
Propagation Delay Skew6
Channel-to-Channel Matching7
Symbol
IDDI (Q)
IDDO (Q)
Min
Typ Max Unit
0.31 0.49 mA
0.19 0.27 mA
IDD1 (Q)
IDD2 (Q)
IDD1 (10)
IDD2 (10)
IDD1 (90)
IDD2 (90)
1.6 2.1 mA
0.7 1.2 mA
4.8 7.1 mA
1.8 2.3 mA
37 54 mA
11 15 mA
IDD1 (Q)
IDD2 (Q)
IDD1 (10)
IDD2 (10)
IDD1 (90)
IDD2 (90)
1.4 1.9 mA
0.9 1.5 mA
4.1 5.6 mA
2.5 3.3 mA
31 44 mA
17 24 mA
IDD1 (Q), IDD2 (Q)
1.2 1.7 mA
IDD1 (10), IDD2 (10)
3.3 4.4 mA
IDD1 (90), IDD2 (90)
24 39 mA
IIA, IIB, IIC,
IID, IE1, IE2
VIH, VEH
VIL, VEL
VOAH, VOBH,
VOCH, VODH
VOAL, VOBL,
VOCL, VODL
−10 +0.01 +10 μA
1.6
VDD1, VDD2 − 0.1
VDD1, VDD2 − 0.4
3.0
2.8
0.0
0.04
0.2
0.4
0.1
0.1
0.4
V
V
V
V
V
V
V
PW
tPHL, tPLH
PWD
tPSK
tPSKCD/OD
1
50
1000 ns
Mbps
75 100 ns
40 ns
50 ns
50 ns
Test Conditions
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
5 MHz logic signal freq.
5 MHz logic signal freq.
45 MHz logic signal freq.
45 MHz logic signal freq.
DC to 1 MHz logic signal freq.
DC to 1 MHz logic signal freq.
5 MHz logic signal freq.
5 MHz logic signal freq.
45 MHz logic signal freq.
45 MHz logic signal freq.
DC to 1 MHz logic signal freq.
5 MHz logic signal freq.
45 MHz logic signal freq.
0 ≤ VIA, VIB, VIC, VID ≤ VDD1 or VDD2,
0 ≤ VE1,VE2 ≤ VDD1 or VDD2
IOx = −20 μA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
IOx = 20 μA, VIx = VIxL
IOx = 400 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
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
Rev. 0 | Page 6 of 24

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ADUM3402 pdf, datenblatt
ADuM3400/ADuM3401/ADuM3402
PACKAGE CHARACTERISTICS
Table 4.
Parameter
Resistance (Input to Output)1
Capacitance (Input to Output)1
Input Capacitance2
IC Junction-to-Case Thermal Resistance, Side 1
IC Junction-to-Case Thermal Resistance, Side 2
Symbol
RI-O
CI-O
CI
θJCI
θJCO
Min Typ Max Unit Test Conditions
1012 Ω
2.2 pF f = 1 MHz
4.0 pF
33 °C/W Thermocouple located at
28 °C/W center of package underside
1 Device considered a 2-terminal device; Pin 1, Pin 2, Pin 3, Pin 4, Pin 5, Pin 6, Pin 7, and Pin 8 shorted together and Pin 9, Pin 10, Pin 11, Pin 12, Pin 13, Pin 14, Pin 15, and
Pin 16 shorted together.
2 Input capacitance is from any input data pin to ground.
REGULATORY INFORMATION
The ADuM340x is approved by the organizations listed in Table 5.
Table 5.
UL 1
Recognized under
1577 component recognition program1
Double/reinforced insulation,
2500 V rms isolation voltage
CSA
Approved under
CSA Component Acceptance Notice #5A
Reinforced insulation per
CSA 60950-1-03 and IEC 60950-1,
400 V rms maximum working voltage
File E214100
File 205078
VDE 2
Certified according to
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-012
Basic insulation, 560 V peak
Complies with
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01,
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
Reinforced insulation, 560 V peak
File 2471900-4880-0001
1 In accordance with UL1577, each ADuM340x is proof tested by applying an insulation test voltage ≥3000 V rms for 1 sec (current leakage detection limit = 5 μA).
2 In accordance with DIN EN 60747-5-2, each ADuM340x is proof tested by applying an insulation test voltage ≥1050 V peak for 1 sec (partial discharge detection limit =
5 pC). The * marking branded on the component designates DIN EN 60747-5-2 approval.
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 6.
Parameter
Rated Dielectric Insulation Voltage
Minimum External Air Gap (Clearance)
Minimum External Tracking (Creepage)
Minimum Internal Gap (Internal Clearance)
Tracking Resistance (Comparative Tracking Index)
Isolation Group
Symbol
L(I01)
L(I02)
CTI
Value
2500
7.7 min
8.1 min
0.017 min
>175
IIIa
Unit
V rms
mm
mm
mm
V
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)
Rev. 0 | Page 12 of 24

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