MAX14770EGUA+

Drivers, Receivers, Transceivers Overview

The MAX14770EGUA+ is a half-duplex RS-485 transceiver manufactured by Analog Devices/Maxim Integrated. It operates on a single +4.5V to +5.5V supply and supports data rates up to 20Mbps. The device features ±35kV HBM ESD protection on the A and B pins, along with true fail-safe receiver circuitry that guarantees a logic-high output when inputs are open or shorted. It includes hot-swap capability, thermal shutdown, and driver short-circuit protection. The component is housed in an 8-pin µMAX package and is specified for operation over an extended temperature range of -40°C to +105°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated ±35kV HBM ESD protection on differential signal lines for enhanced robustness
• True fail-safe receiver ensures logic-high output during input faults or bus idle states
• Hot-swap input structure prevents false transitions during power-up or board insertion
• Low-power shutdown mode reduces supply current to 15µA

Drivers, Receivers, Transceivers Applications

• PROFIBUS-DP Networks
• Industrial Fieldbuses
• Motion Controllers
• RS-485 Networks
• Machine Encoders

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature rating. Confirm RoHS compliance status as indicated by the '+' designation. Ensure compatibility with existing PCB footprints for the 8-pin µMAX configuration before procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high ESD immunity and support for up to 128 nodes on a single bus due to its 1/4 unit load receiver impedance. Consider the 8-pin µMAX package for space-constrained designs requiring surface-mount assembly within the extended industrial temperature range.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX14770E series of high-ESD protected RS-485 transceivers. It is designed to meet IEC 61158-2, TIA/EIA-422-B, and TIA/EIA-485-A standards. The series offers various packaging options including SO, µMAX, and TDFN to accommodate different thermal and spatial requirements across industrial and automotive environments.

Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible alternatives within the same family include MAX14770EESA+T (SOIC) and MAX14770EGSA+T (SOIC). Verify electrical characteristics and package dimensions when substituting.