MAX3082CSA+T

Overview

The MAX3082CSA+T is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply and supports data rates up to 115kbps with slew-rate-limited drivers to minimize EMI. The device features fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. It includes low-power shutdown mode with typical quiescent current of 375µA. The component is housed in an 8-pin SOIC package and operates within a temperature range of 0°C to +70°C.

Feature Summary

• Fail-safe receiver circuitry ensures a logic-high output during bus idle or fault conditions
• Slew-rate-limited driver reduces electromagnetic interference and signal reflections
• Low-power shutdown mode for energy conservation
• 1/8-unit-load receiver impedance allows high node density on the bus

Applications

• RS-422/RS-485 communications
• Industrial-control local area networks
• Transceivers for EMI-sensitive applications

Procurement Notes

Verify the specific suffix CSA+T corresponds to the SOIC-8 package and commercial temperature range (0°C to +70°C). Confirm RoHS compliance status through official manufacturer documentation. Ensure the ordering information matches the exact part number to avoid pinout or functional mismatches with other variants in the MAX308x family.

Selection Notes

Select this component for half-duplex applications requiring error-free transmission at speeds up to 115kbps. The slew-rate limitation makes it suitable for environments where EMI reduction is critical. Verify that the system voltage aligns with the specified +5V operating range and that the thermal requirements fit within the commercial temperature limits.

Part Context

This device belongs to the MAX3080–MAX3089 series of high-speed transceivers designed for RS-485/RS-422 communication. The MAX3082 variant specifically provides half-duplex operation, distinguishing it from full-duplex models like the MAX3081. It shares common features such as fail-safe design and low power consumption with its siblings while offering specific speed characteristics defined by its slew-rate limiting.

Replacement Considerations

The MAX3082CPA+T serves as a pin-compatible alternative in a Plastic DIP package. Other members of the MAX308x family may offer different duplex modes or data rate capabilities but require verification of electrical compatibility before substitution.