MAX3095CEE+T

Overview

The MAX3095CEE+T 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. Propagation delays are guaranteed within ±8ns for device-to-device matching. It includes complementary enable inputs for a 1nA low-power shutdown mode and offers fail-safe logic-high outputs on open circuits. The component utilizes a 16-pin QSOP package with an operating temperature range of 0°C to +70°C.

Feature Summary

• Provides robust electrostatic discharge protection rated at ±15kV for air-gap and human body models, alongside ±8kV contact discharge capability.
• Features tightly matched propagation delays across production lots to minimize signal skew in multi-channel applications.
• Incorporates a quarter-unit-load input impedance allowing up to 128 receivers on a single bus line.
• Includes fail-safe circuitry that guarantees a logic-high output state when differential inputs are left open.

Applications

• Telecommunications equipment requiring rugged interface components
• RS-422/RS-485/RS-423 bus receiver implementations
• ESD-sensitive application environments
• Level translation circuits

Procurement Notes

Verify the specific suffix 'CEE+' corresponds to the 16-pin QSOP package and the commercial temperature range (0°C to +70°C). Confirm the '+T' designation indicates tape-and-reel packaging if required for automated assembly processes. Ensure compatibility with standard 5V logic levels and check for lead-free/RoHS compliance status as indicated by the '+' suffix.

Selection Notes

Select this component when designing systems requiring high ESD immunity and precise timing synchronization between multiple receiver channels. It serves as a direct pin-compatible upgrade to the industry-standard SN75174 or DS26LS31C devices. Consider the MAX3096 variant if a 3.3V supply voltage is necessary instead of the standard 5V operation provided by the MAX3095 series.

Part Context

This part belongs to the MAX3095/MAX3096 family of low-power, quad differential line receivers designed for harsh environments. The MAX3095 specifically targets 5V systems, while the MAX3096 is optimized for 3.3V operation. Both share identical pinouts and functional characteristics, differing primarily in supply voltage requirements and slight variations in propagation delay tolerances.

Replacement Considerations

The MAX3095EPE+ and MAX3095ESE+ offer alternative package options such as Plastic DIP and Narrow SOIC respectively. These variants maintain the same electrical specifications and pinout configuration, facilitating board layout flexibility without requiring schematic changes.

FAQ

How does the MAX3095 handle open-circuit inputs?

The device features a fail-safe mechanism that guarantees a logic-high output when the differential inputs (A and B) are left unconnected or open circuit.

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

Due to its quarter-unit-load input impedance, the MAX3095 allows up to 128 receivers to be connected to 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.