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PDF ADUM1201 Data sheet ( Hoja de datos )
| Número de pieza | ADUM1201 | |
| Descripción | Dual-Channel Digital Isolators | |
| Fabricantes | Analog Devices | |
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Dual-Channel Digital Isolators
ADuM1200/ADuM1201
FEATURES
GENERAL DESCRIPTION
Narrow body SOIC 8-lead package
Low power operation
5 V operation
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
3 V operation
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
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
The ADuM120x 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.
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
APPLICATIONS
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
Size-critical multichannel isolation
and during power-up/power-down conditions.
SPI® interface/data converter isolation
RS-232/RS-422/RS-485 transceiver isolation
Digital field bus isolation
FUNCTIONAL BLOCK DIAGRAMS
VDD1 1
VIA 2
VIB 3
GND1 4
ENCODE
ENCODE
DECODE
DECODE
8 VDD2
7 VOA
6 VOB
5 GND2
Figure 1. ADuM1200 Functional Block Diagram
VDD1 1
VOA 2
VIB 3
GND1 4
DECODE
ENCODE
ENCODE
DECODE
8 VDD2
7 VIA
6 VOB
5 GND2
Figure 2. ADuM1201 Functional Block Diagram
Rev. B
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: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
1 page  
ADuM1200/ADuM1201
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 min/max 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
Symbol Min
Typ Max
Unit
DC SPECIFICATIONS
Input Supply Current, per Channel, Quiescent IDDI (Q)
0.26 0.35
mA
Output Supply Current, per Channel, Quiescent IDDO (Q)
ADuM1200, Total Supply Current, Two Channels1
0.11 0.20
mA
DC to 2 Mbps
VDD1 Supply Current
IDD1 (Q)
0.6 1.0
mA
VDD2 Supply Current
IDD2 (Q)
0.2 0.6
mA
10 Mbps (BR and CR Grades Only)
VDD1 Supply Current
IDD1 (10)
2.2 3.4
mA
VDD2 Supply Current
IDD2 (10)
0.7 1.1
mA
25 Mbps (CR Grade Only)
VDD1 Supply Current
IDD1 (25)
5.2 7.7
mA
VDD2 Supply Current
IDD2 (25)
1.5 2.0
mA
ADuM1201, Total Supply Current, Two Channels1
DC to 2 Mbps
VDD1 Supply Current
IDD1 (Q)
0.4 0.8
mA
VDD2 Supply Current
IDD2 (Q)
0.4 0.8
mA
10 Mbps (BR and CR Grades Only)
VDD1 Supply Current
IDD1 (10)
1.5 2.2
mA
VDD2 Supply Current
IDD2 (10)
1.5 2.2
mA
25 Mbps (CR Grade Only)
VDD1 Supply Current
IDD1 (25)
3.4 4.8
mA
VDD2 Supply Current
IDD2 (25)
3.4 4.8
mA
For All Models
Input Currents
IIA, IIB
−10
0.01 10
µA
Logic High Input Threshold
VIH 0.7 VDD1, VDD2
V
Logic Low Input Threshold
VIL
0.3 VDD1, VDD2
Logic High Output Voltages
VOAH
VDD1,
VDD2 − 0.1
3.0
V
VOBH
VDD1,
VDD2 − 0.5
2.8
V
Logic Low Output Voltages
VOAL
0.0 0.1
V
VOBL
0.04 0.1
V
0.2 0.4
V
SWITCHING SPECIFICATIONS
ADuM120xAR
Minimum Pulse Width2
PW
1000
ns
Maximum Data Rate3
1 Mbps
Propagation Delay4
Pulse-Width Distortion, |tPLH − tPHL|4
Propagation Delay Skew5
tPHL, tPLH
PWD
tPSK
50
150 ns
40 ns
100 ns
Channel-to-Channel Matching6
tPSKCD/OD
50 ns
Output Rise/Fall Time (10% to 90%)
tR/tF
10 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.
12.5 MHz logic signal freq.
12.5 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.
12.5 MHz logic signal freq.
12.5 MHz logic signal freq.
0 ≤ VIA, VIB, ≤ 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
CL = 15 pF, CMOS signal levels
Rev. B | Page 5 of 20
5 Page 
ADuM1200/ADuM1201
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 the thermal
derating curve, 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
VPR
896 V peak
672
VTR 4000
V peak
TS 150
IS1 160
IS2 170
RS >109
°C
mA
mA
Ω
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
180
160
140
SIDE #1 SIDE #2
120
100
80
60
40
20
0
0 50 100 150 200
CASE TEMPERATURE (°C)
Figure 3. Thermal Derating Curve, Dependence of Safety-
Limiting Values on Case Temperature, per DIN EN 60747-5-2
RECOMMENDED OPERATING CONDITIONS
Table 8.
Parameter
Operating Temperature
Supply Voltages1
Input Signal Rise and Fall Times
Symbol
TA
VDD1, VDD2
Min Max Unit
−40 +105 °C
2.7 5.5 V
1.0 ms
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.
Rev. B | Page 11 of 20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet ADUM1201.PDF ] | |
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