ADUM1201ARZ

The ADuM1200/ADuM12011
are dual-channel digital isolators
based on the Analog Devices, Inc., iCoupler¬ technology.
Combining high speed CMOS and monolithic transformer
technologies, these isolation components provide outstanding
performance characteristics superior to alternatives, such as
optocouplers.
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.
The ADuM1200/ADuM1201 isolators provide two independent
isolation channels in a variety of channel configurations and
data rates (see the Ordering Guide). Both devices 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 ADuM1200/ADuM1201 provide low
pulse width distortion (<3 ns for CR grade) and tight channelto-channel matching (<3 ns for CR grade). Unlike other
optocoupler alternatives, the ADuM1200/ADuM1201 isolators
have a patented refresh feature that ensures dc correctness in
the absence of input logic transitions and during powerup/power-down conditions.
The ADuM1200W and ADuM1201W are automotive grade
versions qualified for 125®C operation. See the Automotive
Products section for more information.