ADUM2200 Datasheet, PDF (1/20 Pages) Analog Devices – Dual-Channel Digital Isolators, 5 kV

Dual-Channel Digital Isolators, 5 kV
ADuM2200/ADuM2201
FEATURES
High isolation voltage: 5000 V rms
Low power operation
5 V operation
1.6 mA per channel maximum @ 0 Mbps to 2 Mbps
3.7 mA per channel maximum @ 10 Mbps
3 V operation
1.4 mA per channel maximum @ 0 Mbps to 2 Mbps
2.4 mA per channel maximum @ 10 Mbps
Bidirectional communication
3 V/5 V level translation
High temperature operation: 105°C
High data rate: dc to 10 Mbps (NRZ)
Precise timing characteristics
3 ns maximum pulse width distortion
3 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
16-lead SOIC wide body package (RoHS-compliant
models available)
Safety and regulatory approvals
UL recognition: 5000 V rms for 1 minute per UL 1577
(pending)
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
APPLICATIONS
General-purpose, high voltage, multichannel isolation
Medical equipment
Power supplies
RS-232/RS-422/RS-485 transceiver isolation
GENERAL DESCRIPTION
The ADuM220x¹ are 2-channel digital isolators based on 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 alternatives such as optocoupler devices.
By avoiding the use of LEDs and photodiodes, 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 run at one-tenth to one-sixth
the power of optocouplers at comparable signal data rates.
The ADuM220x isolators provide two independent isolation
channels in a variety of channel configurations and data rates
(see the Ordering Guide). The ADuM220x models operate with
the supply voltage of either side ranging from 3.0 V to 5.5 V,
providing compatibility with lower voltage systems as well as
enabling voltage translation functionality across the isolation
barrier. In addition, the ADuM220x provide low pulse width
distortion (<3 ns for BRWZ grade) and tight channel-to-
channel matching (<3 ns for BRWZ grade). Unlike other
optocoupler alternatives, the ADuM220x 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.
FUNCTIONAL BLOCK DIAGRAMS
GND₁ 1
NC 2
PIN 1
INDICATOR
ADuM2200
V_DD1 3
V_IA 4
ENCODE
DECODE
V_IB 5
NC 6
ENCODE
DECODE
GND₁ 7
NC 8
NC = NO CONNECT
Figure 1. ADuM2200
16 GND₂
15 NC
14 V_DD2
13 _VOA
12 V_OB
11 NC
10 NC
9 GND₂
GND₁ 1
NC 2
PIN 1
INDICATOR
ADuM2201
V_DD1 3
V_OA 4
DECODE
ENCODE
V_IB 5
NC 6
ENCODE
DECODE
GND₁ 7
NC 8
NC = NO CONNECT
Figure 2. ADuM2201
16 GND₂
15 NC
14 V_DD2
13 _VIA
12 V_OB
11 NC
10 NC
9 GND₂
Rev. 0
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