MAX483EEPA+

Overview

The MAX483EEPA+ is a low-power, half-duplex RS-485 and RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features one driver and one receiver in an 8-PDIP package. The device operates from a single +5V supply (4.75V to 5.25V) with a maximum data rate of 250kbps due to slew-rate limiting. It provides ±15kV ESD protection on all pins without latchup. Key electrical parameters include a receiver input hysteresis of 70mV, a no-load supply current of 120µA to 250µA, and a shutdown supply current of 0.5µA to 10µA. The operating temperature range is -40°C to +85°C.

Feature Summary

• Slew-rate limited drivers minimize electromagnetic interference (EMI) and reduce reflections caused by improperly terminated cables.
• Integrated ±15kV electrostatic discharge (ESD) protection on all pins prevents damage without latchup.
• Low-power shutdown mode reduces supply current consumption significantly when the driver and receiver are disabled.
• Fail-safe receiver guarantees a logic-high output if the differential input is open circuit.

Applications

• Industrial-control local area networks
• Transceivers for EMI-sensitive applications
• Level translators

Procurement Notes

Verify the component authenticity by checking the manufacturer marking against the official datasheet pinout and physical dimensions. Confirm the ordering suffix matches the required package type and temperature grade. Ensure the source provides valid traceability documentation to distinguish original components from counterfeits or refurbished units.

Selection Notes

Select this part for half-duplex RS-485/RS-422 communication requiring reduced EMI through slew-rate limiting. It is suitable for harsh environments needing robust ESD protection. Compare with non-E versions if cost is critical but ESD protection is not required. Verify that the 250kbps data rate meets system requirements, as higher-speed variants like the MAX485E exist.

Part Context

The MAX483EEPA+ belongs to the MAX481E/MAX483E/MAX485E family of low-power transceivers. It shares functional compatibility with standard MAX483 devices but adds enhanced ESD protection. The 'E' suffix denotes the extended temperature range (-40°C to +85°C), while 'PA+' indicates the 8-pin Plastic DIP package with lead-free/RoHS compliance.

Replacement Considerations

The MAX483ECPA is a compatible alternative with a commercial temperature range (0°C to +70°C). For full-duplex applications, consider the MAX488E or MAX490E. Higher speed options include the MAX485E or MAX491E, which support up to 2.5Mbps without slew-rate limiting.