ADUM1310_15 Datasheet, PDF (1/24 Pages) Analog Devices – Triple-Channel Digital Isolators

Data Sheet
Triple-Channel Digital Isolators
ADuM1310/ADuM1311
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Low power operation
5 V operation
1.7 mA per channel maximum at 0 Mbps to 2 Mbps
4.0 mA per channel maximum at 2 Mbps to 10 Mbps
3 V operation
1.0 mA per channel maximum at 0 Mbps to 2 Mbps
2.1 mA per channel maximum at 2 Mbps to 10 Mbps
Bidirectional communication
3 V/5 V level translation
Schmitt trigger inputs
High temperature operation: 105°C
Up to 10 Mbps data rate (NRZ)
Programmable default output state
High common-mode transient immunity: >25 kV/μs
16-lead, RoHS-compliant, SOIC wide body package
8.1 mm external creepage
Safety and regulatory approvals
UL recognition: 3750 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
VIORM = 560 V peak working voltage
APPLICATIONS
General-purpose multichannel isolation
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceiver
Industrial field bus isolation
GENERAL DESCRIPTION
V_DD1 1 ADuM1310
GND₁ 2
V_IA 3
ENCODE
V_IB 4
ENCODE
V_IC 5
ENCODE
DECODE
DECODE
DECODE
NC 6
DISABLE 7
GND₁ 8
Figure 1. ADuM1310
16 V_DD2
15 GND₂
14 V_OA
13 V_OB
12 V_OC
11 NC
10 CTRL₂
9 GND₂
V_DD1 1 ADuM1311
GND₁ 2
V_IA 3
ENCODE
V_IB 4
ENCODE
V_OC 5
DECODE
DECODE
DECODE
ENCODE
NC 6
CTRL₁ 7
GND₁ 8
Figure 2. ADuM1311
16 V_DD2
15 GND₂
14 V_OA
13 V_OB
12 V_IC
11 NC
10 CTRL₂
9 GND₂
The ADuM1310/ADuM1311¹ are 3-channel digital isolators
based on Analog Devices, Inc., iCoupler® technology. Combin-
ing high speed CMOS and monolithic air core 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 opto-
couplers. The typical optocoupler concerns regarding uncertain
current transfer ratios, maximum operating 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 iCoupler also offers higher
channel densities and more options for channel directionality.
The ADuM1310/ADuM1311 isolators provide three
independent isolation channels in a variety of channel
configurations and data rates up to 10 Mbps (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 voltage translation
functionality across the isolation barrier. All products allow the
user to predetermine the default output state in the absence of
input VDD1 power with a simple control pin. Unlike other
optocoupler alternatives, the ADuM1310/ADuM1311 isolators
have a patented refresh feature that ensures dc correctness in the
absence of input logic transitions and during power-up/ power-
down conditions.
1 _{Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents pending.}
Rev. J
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