MAX3094ECSE

Overview

The MAX3094ECSE 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 input impedance allows for up to 128 receivers on a bus, and it utilizes a 16-pin Narrow SOIC package.

Feature Summary

• Provides robust electrostatic discharge protection meeting IEC 1000-4-2 standards for harsh environments.
• Ensures precise timing synchronization through guaranteed propagation-delay matching between devices.
• Enables high-density bus configurations with quarter-unit-load input impedance supporting up to 128 receivers.
• Offers ultra-low power consumption in shutdown mode while maintaining fail-safe logic-high outputs for open circuits.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'CSE' corresponds to the commercial temperature range (0°C to +70°C) and the narrow SOIC package format. Confirm that the component source is an authorized distributor or manufacturer representative to ensure authenticity. Check for RoHS compliance status if required by local regulations. Ensure the procurement channel provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select the MAX3094ECSE when a low-voltage 3.3V operation is required for RS-422 or RS-485 interfaces. This part is suitable for designs needing high ESD immunity without external protection components. Consider this device over the MAX3093E if system power constraints dictate a lower voltage supply. Verify that the narrow SOIC footprint fits the available PCB space compared to TSSOP or PDIP alternatives.

Part Context

The MAX3094E serves as a low-power, pin-compatible upgrade to the industry-standard SN75174 and DS26LS31C transmitters. It belongs to the MAX3093E/MAX3094E family of rugged receivers designed for digital data transmission over twisted-pair balanced lines. The ECSE variant specifically denotes the commercial temperature grade and surface-mount narrow SOIC packaging configuration.

Replacement Considerations

The MAX3093E is a compatible alternative requiring a +5V supply instead of +3.3V. Other pin-compatible options include the MAX3094EESE for extended temperature ranges (-40°C to +85°C). Direct replacements must match the quad receiver functionality and RS-422/RS-485 protocol support.