MAX3441EAPA

Overview

The MAX3441EAPA is a half-duplex RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.75 V to 5.25 V, with a typical operating current of 10 mA. The device supports data rates up to 10 Mb/s and features 15 kV ESD protection alongside 60 V fault protection on the bus pins. Designed for industrial environments, it functions reliably across an extended temperature range from -40°C to +85°C. The component is housed in an 8-pin PDIP package, suitable for through-hole mounting applications requiring robust differential communication capabilities.

Feature Summary

• Integrated 15 kV ESD protection and 60 V fault protection for enhanced bus reliability
• Fail-safe receiver design ensures a high logic state when the bus is idle or open
• Supports data transmission rates up to 10 Mbps over half-duplex differential lines

Applications

• Industrial automation control systems
• Building automation networks
• Process control instrumentation

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature grade. The 'PA' suffix typically indicates an 8-pin PDIP package, whereas other suffixes may denote SOIC or TSSOP variants. Confirm RoHS compliance status and lead-free manufacturing details directly with the manufacturer or authorized distributors before procurement to ensure alignment with assembly requirements.

Selection Notes

Select this component when through-hole mounting is required for RS-485 interfaces. Ensure the system design accommodates the 5 V nominal supply voltage and 10 mA quiescent current. Verify that the 10 Mbps data rate meets application bandwidth needs. Consider the 60 V fault protection if the network environment poses risks of transient voltage spikes exceeding standard levels.

Part Context

This part belongs to the MAX3441 family of RS-485/J1708 transceivers. It shares core electrical specifications with surface-mount variants like the MAX3441EESA+, differing primarily in the physical package configuration. The family is designed for high-speed, long-distance differential communication in noisy industrial settings.

Replacement Considerations

The MAX3441EESA+ serves as a functional equivalent with identical electrical characteristics but utilizes an SOIC-8 surface-mount package instead of the PDIP form factor. Direct pin-for-pin replacement is not possible due to the package difference; PCB redesign is required for substitution.