MAX483ESA+

Drivers, Receivers, Transceivers Overview

The MAX483ESA+ is a low-power, half-duplex RS-485 and RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates one driver and one receiver within an 8-pin SOIC package. The device operates from a single 5V supply (4.75V to 5.25V) and supports data rates up to 250kbps. Key electrical characteristics include a typical quiescent current of 120µA and a shutdown mode current of 0.1µA. The driver features reduced slew rates to minimize EMI and reflections. Protection mechanisms include short-circuit current limiting and thermal shutdown.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate limited drivers reduce electromagnetic interference and signal reflections for error-free transmission.
• Low-power operation with a dedicated shutdown mode that reduces supply current to 0.1µA.
• Fail-safe receiver input guarantees a logic-high output when the input pins are left open.
• Driver outputs are protected against excessive power dissipation via internal thermal shutdown circuitry.

Drivers, Receivers, Transceivers Applications

• Industrial-control local area networks
• Transceivers for EMI-sensitive applications
• Low-power RS-485 communication systems
• Low-power RS-422 communication systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature range. The 'ES' suffix indicates an 8-pin SOIC package rated for -40°C to +85°C. Confirm RoHS compliance status as indicated by the '+' symbol in the part number. Ensure the component source matches the manufacturer specifications for reliability.

Drivers, Receivers, Transceivers Selection Notes

Select this component for half-duplex applications requiring reduced EMI due to its slew-rate-limited drivers. It is suitable for systems operating at data rates up to 250kbps where low standby power consumption is critical. Compare with non-slew-rate variants like the MAX485 if higher speeds up to 2.5Mbps are required instead.

Drivers, Receivers, Transceivers Part Context

This device belongs to the MAX481/MAX483/MAX485/MAX487–MAX491/MAX1487 family of low-power transceivers. Within this series, the MAX483 is distinguished by its combination of low power consumption, shutdown capability, and slew-rate limitation, differentiating it from high-speed variants like the MAX481 or full-duplex models like the MAX488.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX483ECSA+T serves as a tape-and-reel alternative to the tube-packaged MAX483ESA+. Other family members such as the MAX481 offer higher speed but lack slew-rate limiting, while the MAX487 supports up to 128 nodes on the bus.