MAX1482CSD+

Drivers, Receivers, Transceivers Overview

The MAX1482CSD+ is a low-power RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply and supports data rates up to 250kbps. The device features a 20µA operating current and a 0.1µA shutdown mode. It utilizes a 1/8-unit-load input impedance, allowing up to 256 transceivers on the bus. The CSD suffix indicates a commercial temperature range of 0°C to +70°C and an SOIC-14 package.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate-limited drivers minimize electromagnetic interference (EMI) and reduce reflections caused by improperly terminated cables.
• Low-current shutdown mode consumes only 0.1µA when both driver and receiver are disabled.
• Fail-safe receiver guarantees a logic-high output if the input is open circuit.
• Driver outputs include short-circuit current limiting and thermal shutdown protection.

Drivers, Receivers, Transceivers Applications

• Low-Power RS-485/RS-422 Networks
• Transceivers for EMI-Sensitive Applications
• Industrial-Control Local Area Networks
• Large 256-Node LANs

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact temperature grade and package variant. Confirm that the component meets all required electrical specifications for the intended application environment before finalizing procurement decisions.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring low power consumption and high node density on RS-485 or RS-422 buses. Ensure the system design accommodates the 250kbps maximum data rate and the specific control logic requirements for the shutdown mode activation.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX1482/MAX1483 family of low-power transceivers. The MAX1482 variant provides full-duplex communication, while the MAX1483 offers half-duplex functionality. Both share identical low-power characteristics and slew-rate limiting features.

Drivers, Receivers, Transceivers Replacement Considerations

Direct functional replacements within the same family include the MAX1483CSD+. Verify compatibility with existing board layouts and control signals when substituting between full-duplex and half-duplex variants.

Drivers, Receivers, Transceivers FAQ

How does the MAX1482CSD+ handle improper cable termination?

The device features slew-rate-limited drivers which significantly reduce signal reflections caused by improperly terminated cables compared to standard RS-485 transceivers.

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

Due to its 1/8-unit-load input impedance, the MAX1482CSD+ allows up to 256 transceivers to be connected on the same bus.

How is the low-power shutdown mode activated?

Shutdown is initiated by bringing the Receiver Enable (RE) pin high and the Driver Enable (DE) pin low simultaneously for at least 600ns.