ADUM7510 Datasheet, PDF (1/12 Pages) Analog Devices – 5-Channel, 1 kV Unidirectional Digital Isolator

FEATURES
RoHS-compliant, 16-lead, QSOP package
Low power operation: 5 V
1.2 mA per channel maximum @ 0 Mbps to 2 Mbps
2.8 mA per channel maximum @ 10 Mbps
High temperature operation: 105°C
Up to 10 Mbps data rate (NRZ)
Low default output state
1000 V rms isolation rating
Safety and regulatory approvals (pending)
UL recognition
1000 V rms for 1 minute per UL 1577
APPLICATIONS
General-purpose, unidirectional, multichannel isolation
GENERAL DESCRIPTION
The ADuM7510¹ is a unidirectional 5-channel isolator based
on the Analog Devices, Inc., iCoupler® technology. In contrast
to the ADuM1510, the ADuM7510 has a lower isolation rating,
offering a reduced cost option for applications that can accept
a 1 kV ac isolation. Combining 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
eliminate the design difficulties commonly associated with opto-
couplers. 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
5-Channel, 1 kV
Unidirectional Digital Isolator
ADuM7510
FUNCTIONAL BLOCK DIAGRAM
V_DD1 1 _ADuM7510
GND₁ 2
V_IA 3
ENCODE
V_IB 4
ENCODE
DECODE
DECODE
V_IC 5
ENCODE
DECODE
V_ID 6
ENCODE
DECODE
V_IE 7
GND₁ 8
ENCODE
DECODE
Figure 1.
16 V_DD2
15 GND₂
14 V_OA
13 V_OB
12 V_OC
11 V_OD
10 V_OE
9 GND₂
external drivers and other discrete components is eliminated with
these iCoupler products. Furthermore, iCoupler devices run at
one-tenth to one-sixth the power consumption of optocouplers
at comparable signal data rates.
The ADuM7510 isolator provides five independent isolation
channels supporting data rates up to 10 Mbps. Each side operates
with the supply voltage of 4.5 V to 5.5 V. Unlike other optocoupler
alternatives, the ADuM7510 isolator has 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; and 7,075,329. Other patents pending.}
Rev. A
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