MAX483CUA+T

Overview

The MAX483CUA+T is a low-power, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates one driver and one receiver in an 8-pin µMAX package. The device supports data rates up to 250kbps with slew-rate-limited drivers to minimize EMI. It operates from a single 5V supply (4.75V to 5.25V) and draws 120µA in active mode. A shutdown mode reduces current consumption to 0.1µA. The receiver features fail-safe circuitry for open inputs, and the driver includes short-circuit protection.

Feature Summary

• Slew-rate-limited drivers reduce electromagnetic interference and cable reflections
• Low-current shutdown mode minimizes power consumption when disabled
• Fail-safe receiver guarantees high output state during input faults

Applications

• Low-power RS-485 communication networks
• EMI-sensitive industrial control systems
• Level translation between logic and bus lines

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation. Ensure the ordering suffix matches the required package type and temperature range specifications before finalizing procurement orders.

Selection Notes

Select this model for applications requiring reduced EMI at data rates up to 250kbps. Choose alternative variants like the MAX481 if higher speeds up to 2.5Mbps are necessary without slew-rate limiting. Verify that the 8-pin µMAX package dimensions fit the target PCB layout constraints.

Part Context

This component belongs to the MAX48x family of low-power transceivers designed for RS-485 and RS-422 standards. It shares functional similarities with the MAX481 and MAX485 but distinguishes itself through controlled driver slew rates. The family targets multipoint bus transmission lines in industrial environments.

Replacement Considerations

Publicly confirmed substitutes include the MAX481CSA and MAX485CSA for non-slew-rate applications. For identical slew-rate characteristics, verify compatibility with other MAX483 variants such as MAX483EESA+T.