MAX1487EEPA+

Drivers, Receivers, Transceivers Overview

The MAX1487EEPA+ is a low-power, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply (4.75V to 5.25V) and supports data rates up to 2.5Mbps. The device features ±15kV ESD protection on driver outputs and receiver inputs without latchup. It includes one driver and one receiver with short-circuit current limiting and thermal shutdown protection. The receiver input impedance is 48kΩ (1/4-unit-load), allowing up to 128 transceivers on the bus. Operating temperature range is -40°C to +85°C. No-load supply current is typically 230µA. Package: 8-Pin Plastic DIP.

Drivers, Receivers, Transceivers Feature Summary

• ±15kV ESD protection on all I/O pins
• Half-duplex operation with independent driver and receiver enables
• 1/4-unit-load receiver input impedance for high node count
• Thermal shutdown and short-circuit current limiting

Drivers, Receivers, Transceivers Applications

• Low-Power RS-485 Transceivers
• Low-Power RS-422 Transceivers
• Level Translators
• Transceivers for EMI-Sensitive Applications
• Industrial-Control Local Area Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the ordering suffix 'E' indicates the extended temperature range (-40°C to +85°C) and 'P' denotes the plastic DIP package. Confirm RoHS compliance status via the manufacturer's official documentation or certification reports before procurement. Ensure the component source is authorized to avoid counterfeit parts.

Drivers, Receivers, Transceivers Selection Notes

Select this part for applications requiring high-speed data transmission up to 2.5Mbps in harsh environments. The 1/4-unit-load receiver allows connecting up to 128 devices on a single bus. Use when ±15kV ESD protection is critical and standard non-E versions are insufficient. Verify power supply constraints match the +5V requirement.

Drivers, Receivers, Transceivers Part Context

The MAX1487E is part of the MAX48x family of low-power RS-485/RS-422 transceivers. It shares pinout compatibility with other members like the MAX481E and MAX485E but differs in slew rate characteristics. Unlike slew-rate-limited variants, the MAX1487E offers full-speed transmission capabilities suitable for higher baud rate requirements within the same package footprint.

Drivers, Receivers, Transceivers Replacement Considerations

MAX481EEPA+

Drivers, Receivers, Transceivers FAQ

Does the MAX1487EEPA+ support full-duplex communication?

No, the MAX1487E is designed specifically for half-duplex applications. Full-duplex versions in this family include the MAX488E and MAX490E.

What is the maximum number of transceivers supported on the bus?

Due to its 48kΩ receiver input impedance (1/4-unit-load), the MAX1487E allows up to 128 transceivers on a single bus.

Is there a shutdown mode for the MAX1487EEPA+?

No, only the MAX481E, MAX483E, and MAX487E feature a low-power shutdown mode. The MAX1487E does not have this capability.