Isolated CAN Transceivers

By Analog Devices Inc 321

Isolated CAN Transceivers

Analog Devices' ADM3052 is an isolated controller area network (CAN) physical layer transceiver with a V+ integrated linear regulator. The ADM3052 complies with the ISO 11898 standard. The device employs Analog Devices, Inc., iCoupler® technology to combine a 3-channel isolator, a CAN transceiver, and a linear regulator into a single package. The power is isolated between a single 3.3 or 5 V supply on VDD1, the logic side, and a single 24 V supply provided on V+, the bus side. The ADM3052 creates an isolated interface between the CAN protocol controller and the physical layer bus. It is capable of running at data rates up to 1 Mbps. The device has integrated miswire protection on the bus pins, V+, V−, CANH, and CANL. The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where the bus may be shorted to ground or power terminals. The part is fully specified over the industrial temperature range and is available in a 16-lead, wide-body SOIC package.

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 ADM3054 is a 5 kV rms signal isolated controller area network (CAN) physical layer transceiver. The ADM3054 complies with the ISO 11898 standard. The device employs Analog Devices, Inc. iCoupler® technology to combine a 3-channel isolator and a CAN transceiver into a single package. The logic side of the device is powered with a single 3.3 or 5 V supply on VDD1 and the bus side uses a single 5 V supply on VDD2 only. Loss of power on the bus side (VDD2) can be detected by an integrated VDD2SENSE signal. The ADM3054 creates an 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 integrated protection on the bus pins, CANH, and CANL against shorts to power/ground in 24 V systems. The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where the bus might be shorted to ground or power terminals. The part is fully specified over the industrial temperature range and is available in a 16-lead, wide-body SOIC package.

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