MAX481ECSA+T

Overview

The MAX481ECSA+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 SO package. The device supports data rates up to 2.5Mbps with a supply voltage of 5V (4.75V to 5.25V). It features ±15kV ESD protection on all pins without latchup. The component operates within a commercial temperature range of 0°C to +70°C and includes thermal shutdown and short-circuit current limiting for output protection.

Feature Summary

• Provides ±15kV electrostatic discharge protection on driver outputs and receiver inputs without latchup.
• Features a low-power shutdown mode consuming only 0.5µA when both driver and receiver are disabled.
• Includes thermal shutdown circuitry that places outputs into a high-impedance state during excessive power dissipation.
• Offers short-circuit current limiting on the output stage across the entire common-mode voltage range.

Applications

• Low-Power RS-485 Transceivers
• Low-Power RS-422 Transceivers
• Industrial-Control Local Area Networks

Procurement Notes

Verify the complete part number including the suffix '+T' to confirm tape-and-reel packaging. Confirm the 'C' designation indicates the 0°C to +70°C commercial temperature range. Ensure compatibility with 5V logic levels and check for RoHS compliance documentation from the manufacturer before procurement.

Selection Notes

Select this component for half-duplex applications requiring data rates up to 2.5Mbps. It is suitable for environments needing robust ESD protection. Note that unlike the MAX483E or MAX487E, this specific model does not feature slew-rate limiting, which may impact EMI performance in high-speed setups.

Part Context

This device belongs to the MAX481E/MAX483E/MAX485E family of low-power transceivers designed for harsh environments. It shares pinouts and basic functionality with other variants in the series but differs in data rate capabilities and specific protection features like slew-rate limiting found in sibling models.

Replacement Considerations

The standard non-ESD protected versions such as MAX481CSA are functionally compatible but lack the ruggedized ESD structures. Other family members like MAX485E offer similar performance but should be cross-checked for specific electrical parameter differences.