Maxim Integrated MAX33012E and MAX33072E transceivers

Ongoing connectivity is essential to optimising operation and improving system uptime in manufacturing for many critical industrial applications, such as asset management systems and communication fieldbus modules. Designers requiring longer uptime for industrial automation applications can accelerate troubleshooting and communicate across large networks with the MAX33012E controller area network (CAN) bus transceiver and the MAX33072E RS-485 half-duplex transceiver from Maxim Integrated Products, designed to increase industrial system uptime for factory-floor networks.

Overvoltage, overcurrent and transmission error faults in CAN will shut down production and idle expensive machinery. To overcome this challenge, the MAX33012E features fault detection on data lines CANH and CANL for overvoltage, overcurrent and transmission failure, and fault code reporting. The product’s detection and reporting enable fast troubleshooting of these faults so vital links can be immediately re-established.

Modern industrial and manufacturing systems also require high common mode voltage tolerance to communicate between disparate systems. The common mode range (CMR) of the MAX33072E is said to be 1.6 times greater than that of the closest competitor (receiver only). With the ability to connect a broad range of disparate nodes, it expands communication network size to allow more machines to operate across larger areas, with simple links. The CMR of ±40 V enables industrial systems to connect and communicate in environments of high electrical noise, up to where a difference of either -40 or +40 V between two nodes is present.