MAX3096CPE

Overview

The MAX3096CPE 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 the Human Body Model and IEC 1000-4-2 standards. Propagation delays are guaranteed within ±10ns of a predetermined value, ensuring tight device-to-device matching. It includes complementary enable inputs for a 1nA low-power shutdown mode and provides fail-safe logic-high outputs when inputs are open circuit. The unit load input impedance allows up to 128 receivers on a bus.

Feature Summary

• Integrated ±15kV electrostatic discharge (ESD) protection on all receiver inputs
• Guaranteed propagation-delay tolerance between devices for minimal skewing
• Quarter-unit-load input impedance supporting high node counts on the bus
• Fail-safe feature guaranteeing a logic-high output during open-circuit conditions

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 against official documentation to confirm package type and temperature range. Confirm RoHS compliance status as indicated by the part number designation. Ensure the selected variant matches the required operating temperature range for the intended application environment before procurement.

Selection Notes

Select the MAX3096CPE specifically for designs requiring a +3.3V power supply, as the MAX3095 variant requires +5V. Consider the 16-pin Plastic DIP package for through-hole mounting requirements. Evaluate the need for the commercial temperature range versus extended ranges available in other suffixes. Verify that the 10Mbps maximum data rate meets the system's communication speed requirements.

Part Context

The MAX3096 serves as a low-power upgrade to the industry-standard '26LS32 quad differential line receiver. It belongs to the MAX3095/MAX3096 family, which shares identical pinouts but differs in supply voltage requirements. This component is designed for harsh environments where robust signal integrity and high noise immunity are critical for reliable data transmission over twisted-pair balanced lines.

Replacement Considerations

The MAX3095 is a direct pin-compatible substitute if the system design utilizes a +5V supply instead of +3.3V. Other members of the MAX3095/MAX3096 family with different package codes or temperature ranges may also serve as replacements provided the electrical characteristics align with the application needs.

FAQ

What is the difference between the MAX3095 and MAX3096?

The primary difference is the operating supply voltage. The MAX3096 operates from a single +3.3V supply, while the MAX3095 operates from a single +5V supply. Both share the same pinout and functional capabilities.

How does the fail-safe feature work on this receiver?

The fail-safe feature guarantees a logic-high output at the receiver pins if the inputs are left open circuit (disconnected). This prevents undefined states when a transmitter is removed from the bus.

What is the purpose of the quarter-unit-load input impedance?

The quarter-unit-load input impedance allows up to 128 receivers to be connected to a single RS-485 bus, significantly increasing the network capacity compared to standard one-unit-load receivers.