Signal and Power Isolated CAN Transceiver
with Integrated Isolated DC-to-DC Converter
Data Sheet
ADM3053
FEATURES
GENERAL DESCRIPTION
2.5 kV rms signal and power isolated CAN transceiver
isoPower integrated isolated dc-to-dc converter
5 V operation on VCC
The ADM3053 is an isolated controller area network (CAN)
physical layer transceiver with an integrated isolated dc-to-dc
converter. The ADM3053 complies with the ISO 11898 standard.
5 V or 3.3 V operation on VIO
The device employs Analog Devices, Inc., iCoupler® technology
to combine a 2-channel isolator, a CAN transceiver, and
Analog Devices isoPower® dc-to-dc converter into a single
SOIC surface mount package. An on-chip oscillator outputs a pair
of square waveforms that drive an internal transformer to provide
isolated power. The device is powered by a single 5 V supply
realizing a fully isolated CAN solution.
Complies with ISO 11898 standard
High speed data rates of up to 1 Mbps
Unpowered nodes do not disturb the bus
Connect 110 or more nodes on the bus
Slope control for reduced EMI
Thermal shutdown protection
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
The ADM3053 creates a fully isolated interface between the
CAN protocol controller and the physical layer bus. It is capable
of running at data rates of up to 1 Mbps.
UL recognition
2500 V rms for 1 minute per UL 1577
VDE Certificate of Conformity
The device has current limiting and thermal shutdown features
to protect against output short circuits. The part is fully specified
over the industrial temperature range and is available in a
20-lead, wide-body SOIC package.
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
V
IORM = 560 V peak
Industrial operating temperature range (−40°C to +85°C)
Available in wide-body, 20-lead SOIC package
The ADM3053 contains isoPower technology that uses high
frequency switching elements to transfer power through the
transformer. Special care must be taken during printed circuit
board (PCB) layout to meet emissions standards. Refer to the
AN-0971 Application Note, Control of Radiated Emissions with
isoPower Devices, for details on board layout considerations.
APPLICATIONS
CAN data buses
Industrial field networks
FUNCTIONAL BLOCK DIAGRAM
V
V
ISOOUT
CC
isoPower DC-TO-DC CONVERTER
OSCILLATOR
RECTIFIER
REGULATOR
V
V
IO
ISOIN
V
CC
DIGITAL ISOLATION iCoupler
PROTECTION
TxD
R
S
ENCODE
DECODE
ENCODE
TxD
RxD
DRIVER
R
S
SLOPE/
STANDBY
RxD
CANH
CANL
DECODE
RECEIVER
V
REF
REFERENCE
VOLTAGE
CAN TRANSCEIVER
V
REF
ADM3053
GND2
GND1
GND2
BUS SIDE
ISOLATION
BARRIER
LOGIC SIDE
Figure 1.
Rev. A
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