MAX3082EESA+

Product Overview

The MAX3082EESA+ from Analog Devices Inc./Maxim Integrated is a surface-mount half-duplex transceiver for RS-422 and RS-485 serial communication. The device combines one driver and one receiver in an 8-SOIC package and operates from a 4.75 V to 5.25 V supply. It supports a data rate of 115 Kbps and provides 100 mV of receiver hysteresis, a parameter relevant to differential serial signal discrimination. The specified operating temperature range is -40°C to 85°C for the surface-mount package. Because the device is configured for half-duplex operation, the communication path is shared between transmit and receive functions.

Key Features

• Half-duplex RS-422/RS-485 transceiver with one driver and one receiver.
• Operates from a 4.75 V to 5.25 V supply.
• Supports a 115 Kbps data rate and 100 mV receiver hysteresis.
• Surface-mount 8-SOIC package with a 0.154 in, 3.90 mm width.
• Specified for operation from -40°C to 85°C.

Applications

• RS-422 and RS-485 serial communication links between logic circuits and differential serial lines.
• Half-duplex serial data exchange in systems using a 4.75 V to 5.25 V supply.
• Surface-mount serial communication designs operating from -40°C to 85°C.

Design & Procurement Notes

Design considerations should focus on the 8-SOIC surface-mount footprint, the 4.75 V to 5.25 V supply range, and the 115 Kbps data-rate limit. Since the device is a half-duplex transceiver with one driver and one receiver, board-level serial-link planning should allocate the communication path for alternating transmit and receive use rather than simultaneous bidirectional traffic. The 100 mV receiver hysteresis and -40°C to 85°C operating range can guide signal-margin and thermal-margin assumptions in 5 V differential serial designs.