MAX3095ESE

Overview

The MAX3095ESE+ is a quad RS-422/RS-485 receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply and supports data rates up to 10Mbps. The device features ±15kV ESD protection via IEC 1000-4-2 Air-Gap Discharge, ±8kV Contact Discharge, and Human Body Model standards. It includes complementary enable inputs for a 1nA low-power shutdown mode and guarantees propagation-delay matching within ±8ns across production lots. The component provides fail-safe logic-high outputs for open circuits and utilizes quarter-unit-load input impedance to support up to 128 receivers on a bus.

Feature Summary

• Provides robust electrostatic discharge protection meeting IEC 1000-4-2 and Human Body Model standards for harsh environments.
• Ensures precise timing synchronization through guaranteed propagation-delay tolerance between all integrated circuits.
• Supports high-density network configurations by allowing up to 128 receivers on a single bus line.

Applications

• Telecommunications Equipment
• Rugged RS-422/RS-485/RS-423 Bus Receiver
• Receivers for ESD-Sensitive Applications

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature range. Confirm RoHS compliance status as indicated by the '+' symbol in the part number. Ensure the selected variant matches the required operational voltage and environmental specifications for the target application.

Selection Notes

Select this component when designing systems requiring multiple RS-422 or RS-485 receivers with strict timing skew requirements. The MAX3095 is suitable for applications needing high ESD immunity without external protection components. Consider the MAX3096 if a +3.3V supply rail is available instead of the standard +5V requirement.

Part Context

The MAX3095 serves as a low-power, pin-compatible upgrade to the industry-standard '26LS32 quad differential receiver. It belongs to the MAX3095/MAX3096 family designed for rugged industrial communication buses. The device integrates advanced BiCMOS processing to deliver high performance while maintaining low power consumption in both active and shutdown states.

Replacement Considerations

The MAX3095 is explicitly documented as a pin-compatible replacement for the '26LS32. Designers upgrading legacy systems should verify that the existing board layout accommodates the specific package dimensions of the SOIC-16 variant.

FAQ

How does the MAX3095 handle open-circuit inputs?

The device features a fail-safe mechanism that guarantees a logic-high output state when the receiver inputs are left open circuit or disconnected from the bus.

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

Due to its quarter-unit-load input impedance, the MAX3095 allows for the connection of up to 128 receivers on a single RS-485 bus.

How is the low-power shutdown mode activated?

Shutdown is initiated by setting the active-high enable input (G) low and the active-low enable input (G_bar) high, reducing supply current to typically less than 1nA.