MAX3088CSA+T

Overview

The MAX3088CSA+T is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply (4.75V to 5.25V) and supports data rates up to 10Mbps with unrestricted driver slew rates. The device incorporates fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. It features low-power shutdown mode with typical quiescent current of 375µA, 1/8-unit-load receiver impedance allowing up to 256 devices on the bus, and thermal shutdown protection.

Feature Summary

• Fail-safe receiver circuitry ensures a logic-high output during idle or fault conditions
• High-speed transmission capability up to 10Mbps without slew-rate limiting
• Low-power shutdown mode for energy conservation in standby states
• Thermal shutdown protection prevents damage from excessive power dissipation

Applications

• RS-422/RS-485 communications networks
• Industrial-control local area networks
• Level translators for digital interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment upon receipt. Cross-reference ordering suffixes against official documentation to ensure correct temperature range and packaging specifications. Validate RoHS compliance status as required by regional regulations.

Selection Notes

Select this component for applications requiring high-speed half-duplex communication over twisted-pair lines. Ensure system voltage matches the specified +5V operating range. Consider the 1/8-unit-load input impedance for network topology planning. Verify that the SOIC-8 surface-mount package fits the available PCB footprint constraints.

Part Context

This part belongs to the MAX3080–MAX3089 family of high-speed transceivers designed for RS-485/RS-422 standards. The MAX3088 specifically provides half-duplex operation with full-speed capabilities. It shares functional similarities with other family members but differs in duplex mode and slew-rate configuration compared to variants like the MAX3086 or MAX3089.

Replacement Considerations

Pin-compatible alternatives within the same family include the MAX3086 for full-duplex operation. Direct substitutes require matching the half-duplex requirement and 10Mbps speed specification. Verify electrical characteristics such as supply voltage and package type before substitution.