MAX3461CSD+

Drivers, Receivers, Transceivers Overview

The MAX3461CSD+ is a full-duplex RS-485/RS-422 transceiver operating from a +5V supply. It features one differential driver and one differential receiver in a 14-pin SO package. The device supports data rates up to 20Mbps with propagation delays under 20ns and output skew less than 2ns. It includes true fail-safe circuitry, ensuring a logic-high receiver output when inputs are open or shorted. The receiver input impedance is 1/4 unit load (48kΩ), allowing up to 128 transceivers on the bus. Supply current is typically 2.5mA, dropping to 1µA in shutdown mode.

Drivers, Receivers, Transceivers Feature Summary

• True fail-safe receiver guarantees a logic-high output when inputs are open or shorted
• Hot-swap capability prevents disturbances during board insertion into powered backplanes
• Driver protection via short-circuit current limiting and thermal shutdown at +140°C
• 1/4-unit-load receiver input impedance enables connection of up to 128 devices on the bus

Drivers, Receivers, Transceivers Applications

• High-speed RS-485 communications
• High-speed RS-422 communications
• Profibus applications requiring +2.1V output level
• Industrial-control local area networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the component matches the specific ordering code MAX3461CSD+. Confirm the suffix indicates the commercial temperature range of 0°C to +70°C and the 14-pin Small Outline package. Ensure the manufacturer designation aligns with Analog Devices Inc. or Maxim Integrated products as specified for this part number.

Drivers, Receivers, Transceivers Selection Notes

Select the MAX3461CSD+ when full-duplex communication is required alongside hot-swap functionality. This variant is distinct from the MAX3460 due to the absence of hot-swap features on the receiver enable pin. Choose this over half-duplex models like the MAX3463 when simultaneous transmission and reception are necessary for the application design.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX3460–MAX3464 family of high-speed differential bus transceivers. The MAX3461 specifically provides full-duplex operation with independent driver and receiver controls. It shares the same electrical characteristics as the MAX3460 but lacks the hot-swap feature on the RE pin, differentiating it within the series.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX3460CSD+ serves as a direct functional substitute, offering identical specifications with the addition of hot-swap capability on the receiver enable pin. Other family members like the MAX3462CSD provide full-duplex operation but lack both hot-swap features and independent shutdown pins.