MAX3283EAUT+T

Overview

The MAX3283EAUT+T is a single RS-485/RS-422 receiver manufactured by Analog Devices Inc. It operates within a supply voltage range of 3V to 5.5V and supports data rates up to 52Mbps. The device features true fail-safe circuitry that guarantees a logic-high output when inputs are open or shorted, ensuring stable communication states. It includes an active-low enable pin for three-state control and offers ±15kV ESD protection on the A and B input pins. The component is housed in a compact 6-pin SOT23 package and functions reliably across an operating temperature range from -40°C to +125°C.

Feature Summary

• True fail-safe architecture ensures a high logic state during bus idle or fault conditions
• Active-low enable pin provides three-state output control for redundant operation
• Integrated ESD protection withstands ±15kV human body model discharges
• Low package-to-package skew time facilitates precise multidrop clock distribution

Applications

• Multidrop clock distribution networks
• Telecom rack equipment interfaces
• Industrial control system buses
• Base station communication links

Procurement Notes

Verify the specific suffix '+T' indicates tape and reel packaging configuration. Confirm the 'E' designation aligns with industrial temperature specifications (-40°C to +125°C). Ensure compatibility with existing PCB land patterns for the SOT23-6 footprint. Cross-reference RoHS compliance status if required by local regulations.

Selection Notes

Select this component when a single receiver with active-low enable functionality is required. It is suitable for systems needing high noise immunity via true fail-safe design. Consider alternatives like the MAX3280E if enable control is unnecessary, or the MAX3284E if low-voltage logic interfacing is needed. Verify power supply constraints match the 3V to 5.5V operational range.

Part Context

This part belongs to the MAX3280E/MAX3281E/MAX3283E/MAX3284E family of high-speed receivers. While sharing core electrical characteristics, the MAX3283E specifically differentiates itself through its active-low enable pin. This distinguishes it from the MAX3280E (no enable) and MAX3281E (active-high enable), allowing flexible integration into complex bus topologies requiring specific enable logic polarity.

Replacement Considerations

MAX3281EAUT+T serves as a functional substitute with identical performance but utilizes an active-high enable pin instead of active-low. Designers must invert the control signal logic when implementing this replacement to maintain correct three-state behavior.