MAX3094EEUE

Overview

The MAX3094EEUE is a quad RS-422/RS-485 receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +3V to +3.6V supply and supports data rates up to 10Mbps. The device features ±15kV ESD protection via Human Body Model, ±8kV IEC 1000-4-2 Contact Discharge, and ±15kV Air-Gap Discharge. It includes a 1nA low-power shutdown mode and guarantees propagation-delay matching within ±10ns. The unit utilizes a 16-pin TSSOP package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides robust electrostatic discharge protection for harsh environments
• Ensures precise timing with guaranteed propagation-delay matching
• Supports high-density bus configurations with quarter-unit-load input impedance
• Features fail-safe logic to maintain output states during open-circuit conditions

Applications

• Telecommunications equipment
• Rugged RS-422/RS-485/RS-423 bus receivers
• Receivers for ESD-sensitive applications
• Level translators

Procurement Notes

Verify the specific ordering suffix EEUE confirms the extended industrial temperature range (-40°C to +85°C) and the 16-pin TSSOP package configuration. Ensure compatibility with the required +3.3V supply voltage and confirm that the pinout matches the intended PCB layout before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring low-power operation at 3.3V with high-speed data transmission capabilities. It serves as a direct pin-compatible upgrade to legacy '34C86 devices. Consider its tight propagation delay matching for multi-channel synchronization requirements and its ability to support up to 128 receivers on a single bus line.

Part Context

This part belongs to the MAX3093E/MAX3094E family of rugged, low-power quad receivers. While the MAX3093E operates at +5V, the MAX3094E is optimized for +3.3V supplies. Both share identical pinouts and functional characteristics, differing primarily in their supply voltage requirements and specific propagation delay tolerances.

Replacement Considerations

The MAX3094EESE (Narrow SOIC) and MAX3094EEPE (Plastic DIP) are pin-compatible alternatives offering different package footprints while maintaining identical electrical performance and functionality.

FAQ

How does the MAX3094EEUE handle open-circuit inputs?

The device incorporates a fail-safe feature that guarantees a logic-high output if the differential input is left open circuit.

What is the maximum number of receivers supported on a bus?

Due to its quarter-unit-load input impedance, the MAX3094EEUE allows up to 128 receivers to be connected on a single bus.

What ESD protection standards does the device meet?

It meets IEC 1000-4-2 standards with ±8kV contact discharge and ±15kV air-gap discharge, as well as ±15kV Human Body Model protection.