MAX3488EPA+

Overview

The MAX3488EPA+ is a full-duplex RS-422/RS-485 transceiver operating from a single 3.3V supply. It features one driver and one receiver with slew-rate-limited outputs to minimize EMI, supporting data rates up to 250kbps. The device operates within an extended temperature range of -40°C to +85°C and utilizes an 8-pin Plastic DIP package. Electrical characteristics include a typical supply current of 1.1mA, a maximum propagation delay skew of 20ns for the receiver, and a common-mode input voltage range spanning -7V to +12V.

Feature Summary

• Full-duplex communication capability with independent transmit and receive channels
• Slew-rate-limited drivers designed to reduce electromagnetic interference and signal reflections
• Fail-safe receiver circuitry that ensures a logic-high output state when inputs are open
• Driver protection mechanisms including short-circuit current limiting and thermal shutdown

Applications

• Industrial-control local area networks
• Telecommunications systems requiring low-power interface solutions
• EMI-sensitive applications utilizing RS-485 or RS-422 protocols

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the 'E' suffix indicates the extended industrial temperature range and the 'PA' suffix denotes the 8-pin plastic DIP package. Ensure compliance with relevant environmental standards such as RoHS requirements before integration into production designs.

Selection Notes

Select this component for applications requiring simultaneous bidirectional data transmission at speeds up to 250kbps. The integrated slew-rate limiting makes it suitable for noisy environments where signal integrity is critical. Verify that the system power supply remains stable between 3.0V and 3.6V to maintain optimal electrical performance and timing parameters.

Part Context

This part belongs to the MAX348x family of 3.3V-powered transceivers manufactured by Analog Devices / Maxim Integrated. It shares architectural similarities with half-duplex variants like the MAX3483 but provides distinct full-duplex functionality through separate Y and Z driver outputs alongside the standard A and B receiver inputs.

Replacement Considerations

The MAX3490 serves as a direct functional substitute within the same family, offering identical full-duplex operation and pinout compatibility. Both components share the same electrical specifications and application circuits, allowing for interchangeability in existing designs without schematic modifications.