MAX3083ESD+T

Overview

The MAX3083ESD+T is a high-speed RS-485/RS-422 transceiver featuring one driver and one receiver. It supports full-duplex communication with a maximum data rate of 500kbps. The device incorporates fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. It operates from a single +5V supply, drawing typically 375µA in no-load conditions. The component is housed in a 14-pin SO package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Fail-safe circuitry ensures a logic-high receiver output during bus idle or fault conditions
• Slew-rate limited drivers minimize electromagnetic interference and signal reflections
• High input impedance allows connection of up to 256 transceivers on the bus

Applications

• RS-422/RS-485 communications
• Level translators
• Transceivers for EMI-sensitive applications
• Industrial-control local area networks

Procurement Notes

Verify the specific suffix 'ESD' confirms the -40°C to +85°C industrial temperature grade and SOIC-14 packaging. Confirm the '+' designation indicates lead-free compliance. Cross-reference the manufacturer's current product status as this family may be discontinued or superseded by newer iterations.

Selection Notes

Select this model for full-duplex applications requiring speeds up to 500kbps. Choose over MAX3080 variants if higher transmission rates are needed, or over MAX3086 variants if reduced EMI is critical. Ensure the system requires a single +5V supply and benefits from the 1/8-unit-load input impedance for high node counts.

Part Context

This component belongs to the MAX3080–MAX3089 series of high-speed transceivers designed for RS-485 and RS-422 standards. The series differentiates models primarily by duplex mode (half/full) and slew-rate limitations, which dictate the maximum supported data rate from 115kbps to 10Mbps.

Replacement Considerations

The MAX3083 is pin-compatible with industry-standard 75180 devices. Direct functional replacements within the same family include the MAX3080 (115kbps) or MAX3086 (10Mbps), provided the speed requirements align with the specific application constraints.