ADUM250N Datasheet, PDF (1/22 Pages) Analog Devices – High common-mode transient immunity: 100 kV/μs

Data Sheet
5.0 kV RMS, 5-Channel Digital Isolators
ADuM250N/ADuM251N/ADuM252N
FEATURES
High common-mode transient immunity: 100 kV/μs
High robustness to radiated and conducted noise
Low propagation delay
13 ns maximum for 5 V operation
15 ns maximum for 1.8 V operation
150 Mbps maximum guaranteed data rate
Safety and regulatory approvals (pending)
UL recognition: 5000 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 = 849 V peak
CQC certification per GB4943.1-2011
Low dynamic power consumption
1.8 V to 5 V level translation
High temperature operation: 125°C
Fail-safe high or low options
16-lead, RoHS compliant, wide-body SOIC_IC package
APPLICATIONS
General-purpose multichannel isolation
Serial peripheral interface (SPI)/data converter isolation
Industrial field bus isolation
GENERAL DESCRIPTION
The ADuM250N/ADuM251N/ADuM252N¹ are 5-channel
digital isolators based on Analog Devices, Inc., iCoupler®
technology. Combining high speed, complementary metal-oxide
semiconductor (CMOS) and monolithic air core transformer
technology, these isolation components provide outstanding
performance characteristics superior to alternatives such as
optocoupler devices and other integrated couplers. The
maximum propagation delay is 13 ns with a pulse width
distortion of less than 4.5 ns at 5 V operation. Channel to
channel matching of propagation delay is tight at 4.0 ns
maximum.
The ADuM250N/ADuM251N/ADuM252N data channels are
independent and are available in a variety of configurations
with a withstand voltage rating of 5.0 kV rms (see the Ordering
Guide). The devices operate with the supply voltage on either
side ranging from 1.7 V to 5.5 V, providing compatibility with
lower voltage systems as well as enabling voltage translation
functionality across the isolation barrier.
FUNCTIONAL BLOCK DIAGRAMS
V_DD1 1
V_IA 2
V_IB 3
V_IC 4
V_ID 5
V_IE 6
NIC 7
GND₁ 8
ADuM250N
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16 V_DD2
15 VOA
14 V_OB
13 V_OC
12 V_OD
11 V_OE
10 NIC
9 GND₂
Figure 1. ADuM250N Functional Block Diagram
V_DD1 1
V_IA 2
V_IB 3
V_IC 4
V_ID 5
V_OE 6
NIC 7
GND₁ 8
ADuM251N
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16 V_DD2
15 VOA
14 V_OB
13 V_OC
12 V_OD
11 V_IE
10 NIC
9 GND₂
Figure 2. ADuM251N Functional Block Diagram
V_DD1 1
V_IA 2
V_IB 3
V_IC 4
V_OD 5
V_OE 6
NIC 7
GND₁ 8
ADuM252N
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DECODE
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16 V_DD2
15 VOA
14 V_OB
13 V_OC
12 V_ID
11 V_IE
10 NIC
9 GND₂
Figure 3. ADuM252N Functional Block Diagram
Unlike other optocoupler alternatives, dc correctness is ensured
in the absence of input logic transitions. Two different fail-safe
options are available by which the outputs transition to a predeter-
mined state when the input power supply is not applied.
1 _{Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.}
Rev. 0
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