Quad-Channel Isolator with
Integrated DC-to-DC Converter
Preliminary Technical Data
integrated, isolated dc-to-dc converter
Regulated 3.3 V or 5 V output
500 mW output power
Quad dc-to-25 Mbps (NRZ) signal isolation channels
Schmitt trigger inputs
16-lead SOIC package with >8 mm creepage
High temperature operation: 105°C
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals (pending)
2500 V rms for 1 minute per UL1577
CSA Component Acceptance Notice #5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
= 560 V peak
FUNCTIONAL BLOCK DIAGRAMS
Industrial field bus isolation
Power supply startup bias and gate drive
Isolated sensor interface
Figure 2. ADuM5400
device is a quad-channel digital isolators with
an integrated, isolated dc-to-dc converter. Based on
the Analog Devices, Inc.,
technology, the dc-to-dc
converter provides up to 500 mW of regulated, isolated power at
either 5.0 V from a 5.0 V input supply or 3.3 V from a 3.3 V supply.
This eliminates the need for a separate, isolated dc-to-dc
converter in low power, isolated designs. The
transformer technology is used
to isolate the logic signals and the magnetic components of the
dc-to-dc converter. The result is a small form factor, total isolation
The ADuM5400 isolator provides four independent isolation
channels in a variety of channel configurations and data rates
(see the Ordering Guide for more information).
Protected by U.S. Patents 5,952,849; 6,873,065; and 7075 329 B2. Other
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