Maxim MAX14827 IO-Link device transceiver

The MAX14827 transceiver from Maxim Integrated is said to be the industry’s smallest dual-channel transceiver using IO-Link point-to-point communication technology. The transceiver lets designers incorporate intelligent sensors with continuous diagnostics and monitoring into Industry 4.0 or industrial Internet of Things (IoT) applications.

The transceiver integrates the high-voltage functions commonly found in industrial sensors, including drivers and regulators. It features two ultralow-power drivers with active reverse-polarity protection to reduce downtime. The device provides a selectable driver current (50 to 250 mA), supports supply voltages from 24 to 60 V and includes a micro transient voltage suppressor (TVS) that increases voltage tolerance to provide transient voltage protection. In addition, it features a low on-resistance of just 2.3Ω, saving more than 50% power dissipation.

The device offers pin-control logic inputs that allow for operation with switching sensors that do not use a microcontroller, as well as an SPI interface with extensive diagnostics for sensors that use a microcontroller. Engineers can alternatively use a three-wire UART interface for IO-Link operation and a multiplexed UART/SPI option, which enables one serial microcontroller interface for shared SPI and UART interfaces. The device also includes onboard 3.3 and 5 V linear regulators for low-noise analog and logic supply rails.