Dual-Channel Isolators with
Integrated DC/DC Converter
ADuM5200/5201/5202
Preliminary Technical Data
FEATURES
isoPower™ integrated isolated DC/DC converter
FUNCTIONAL BLOCK DIAGRAMS
Regulated 3V or 5V output
500mW output power
Dual dc-to-25 Mbps (NRZ) signal isolation channels
Schmitt Trigger Inputs
SOIC 16-lead package with > 8mm creepage
High temperature operation: 105°C
High common-mode transient immunity: > 25 kV/μs
Safety and regulatory approvals (pending)
UL recognition
2500 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 = 560 V peak
APPLICATIONS
RS-232/RS-422/RS-485 transceiver
Industrial field bus isolation
Power Supply start up and Gate Drive
Isolated Sensor Interface
Industrial PLC
GENERAL DESCRIPTION
The ADuM520x1 are dual-channel digital isolators with
isoPower, an integrated, isolated DC/DC converter. Based on
Analog Devices’ iCoupler® technology, the DC/DC converter
provides up to 500 mW of regulated, isolated power at either
5.0V from a 5.0V input supply or 3.3V from a 3.3V or 5.0V
supply. This eliminates the need for a separate isolated DC/DC
converter in low-power isolated designs. Analog Devices’ chip-
scale transformer iCoupler technology is used both for the
isolation of the logic signals as well as for the DC/DC converter.
The result is a small form-factor total-isolation solution.
Figure 1ADuM520x Functional Diagrams
ADuM520x units may be used in combination with ADuM540x
and ADuM5000 with isoPower to achieve higher output power
levels and greater channel counts.
1 Protected by U.S. Patents 5,952,849, 6,873,065. and 7075 329 B2, Other
patents pending.
The ADuM520x isolators provide two independent isolation
channels in a variety of channel configurations and data rates
(see Ordering Guide).
Rev. PrA
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