MAX3096EPE

Overview

The MAX3096EPE is a quad RS-422/RS-485 receiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +3.3V supply and supports data rates up to 10Mbps. The device features ±15kV ESD protection via Human Body Model, ±15kV IEC Air-Gap Discharge, and ±8kV IEC Contact Discharge. Input hysteresis is typically 45mV, with an input resistance of 48kΩ (quarter-unit-load). Operating supply current is typically 2.4mA, dropping to less than 1nA in shutdown mode. Propagation delay ranges from 69ns to 127ns, with a skew of ±10ns. It is housed in a 16-pin Plastic DIP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Provides robust electrostatic discharge protection on all receiver inputs for harsh environments.
• Features guaranteed propagation-delay matching between devices to minimize signal skew.
• Includes fail-safe circuitry that ensures a logic-high output when inputs are open-circuited.
• Offers a low-power shutdown mode with high-impedance outputs and minimal current draw.

Applications

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

Procurement Notes

Verify the specific suffix 'EPE' corresponds to the required -40°C to +85°C temperature range and 16-pin PDIP package. Confirm the '+ ' indicates lead-free/RoHS compliance as per manufacturer standards. Ensure the design utilizes a +3.3V supply rail, as this variant differs from the +5V MAX3095. Cross-reference pinout compatibility if replacing legacy components like the '26LS32.

Selection Notes

Select the MAX3096EPE when a +3.3V supply voltage is available, distinguishing it from the MAX3095 which requires +5V. Choose this component for systems requiring tight propagation delay matching across multiple channels or buses. Consider the 16-pin PDIP package constraints for through-hole mounting requirements. Verify that the 10Mbps maximum data rate meets the system's throughput needs.

Part Context

The MAX3096 is part of the MAX3095/MAX3096 family of rugged, low-power quad receivers. It serves as a pin-compatible, low-power upgrade to the industry-standard '26LS32. While functionally similar to the MAX3095, the MAX3096 is specifically optimized for +3.3V operation. Both devices share identical pinouts and feature sets, differing primarily in their supply voltage requirements and slight variations in propagation delay specifications.

Replacement Considerations

The MAX3096EPE is a direct pin-compatible replacement for the '26LS32. For +5V applications, the MAX3095EPE may be used instead. Other variants in the series include MAX3096EEE+ (QSOP) and MAX3096ESE+ (Narrow SO). Ensure the substitute matches the required operating temperature range and package type.

FAQ

How does the MAX3096 handle open-circuit inputs?

The device includes a fail-safe feature that guarantees a logic-high output if the differential input (A-B) is open-circuited.

What is the input impedance of the MAX3096?

The receiver presents a quarter-unit-load input impedance of approximately 48kΩ, allowing up to 128 receivers on a single bus.

How is the shutdown mode activated?

Shutdown is activated when the active-high enable input (G) is low and the active-low enable input (G) is high, placing outputs in a high-impedance state.