DESCRIPTION
Demonstration circuit 2617A implements the isoSPI and
isolated CAN interface hardware on a single Arduino
shield. It allows Arduino-compatible controller boards to
communicate with isoSPI and/or CAN bus networks.
DC2617A is compatible with both 5V or 3.3V logic controller
boards. DC2617A derives its power directly from
the Arduino controller board via the 3.3V output.
isoSPI is a robust 2-wire isolated interface popularized
by Analog Device’s family of high voltage battery stack
monitors. DC2617A includes the LTC®6820 and associated
transformers to translate between the Arduino’s SPI
port and the RJ45 isoSPI connector.
CAN bus is a robust standards-based communications
method used in automotive and industrial settings.
DC2617A includes the LTM2889 isolated CAN transceiver
to connect to a CAN bus on the standard 9-pin sub-D
connector. An onboard controller (MCP2515) provides
the logic interface between the Arduino’s SPI and CAN.
Alternatively, DC2617A can be connected directly to controller
boards which include CAN functionality.