GENERAL DESCRIPTION

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. 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. 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. 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. 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, Recommendations for Control of Radiated Emissions with isoPower Devices, for details on board layout considerations.

FEATURES 2.5 kV rms signal and power isolated CAN transceiver isoPower integrated isolated dc-to-dc converter 5 V operation on VCC

5 V or 3.3 V operation on VIO

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 UL recognition 2500 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice 5A VDE Certificate of Conformity DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01 VIORM = 560 V peak Industrial operating temperature range (−40°C to +85°C) Available in wide-body, 20-lead SOIC package

APPLICATIONS

CAN data buses

Industrial field networks