CAN FD transceivers aim to future proof networks

Addressing the need for speed, functionality, isolation, and performance in industrial and building automation, energy systems, and mil/aero networks, Analog Devices, has added to its transceiver product line for controller area networks with flexible data-rate (CAN FD). The galvanically isolated iCoupler digital isolation ADM3055E IC series exceeds the industry standard of 5Mbits per second. It offers 12Mbits per second performance to support future needs, yet remains fully backwards compatible with existing CAN and CAN FD designs. The reinforced ADM3055E has a low radiated emissions isoPower isolated DC/DC converter for easier design-in and faster time-to-market for CAN nodes with full safety isolation, reassures Analog Devices.

The ADM3055E series allows designers to realise increased data rates and longer cable lengths due to low loop delays (150 nanoseconds maximum) and extended common-mode range. An integrated isolated DC/DC converter eliminates the need to provide a separate power source for the isolated bus side. This combination of high level of integration, ease of obtaining emissions and ESD certifications, and the availability of integrated, isolated power allows designers to minimise development cost, PC board footprint, and solution size, while avoiding the limitations of existing isolated products and approaches. Versions with lower isolation ratings will be available soon, says Analog Devices.

Features of the ADM3055E are that it meets EN 55022/CISPR 22 Class B emissions standards on a two-layer PCB and IEC61000-4-2 Level 4 ESD rating (±8kV contact / ±15kV air). It has ±40V bus fault protection on CAN bus pins and ±25V common mode range. It also has 5V logic-side VCC with isolated-side VIO options for 1.8, 2.5, 3.3 and 5.0V supplies

The ADM3055E has a 5kV isolation rating and is in full production. It is available in a 20-lead SOIC IC.  The non-isoPower devices, the ADM3056E and ADM305OE are both rated at 5.7kV. The ADM3056E and ADM305OE is available in 16-lead SOIC IC and 16-lead SOIC W respectively, with the ADM3050E available now and the ADM3056E is scheduled to be in full production in December.

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