MAX3061EEKA#G16

Overview

The MAX3061EEKA#G16 is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates one driver and one receiver within an 8-pin SOT23 package. The device supports data rates up to 500kbps with slew-rate-limited drivers to minimize electromagnetic interference. It operates on a single +5V supply (4.75V to 5.25V) and draws 910µA of typical supply current when unloaded. The unit-load receiver input impedance allows for up to 256 transceivers on the bus. ESD protection is rated at ±15kV using the Human Body Model, and the operating temperature range spans from -40°C to +85°C.

Feature Summary

• True fail-safe receiver guarantees a logic-high output when inputs are open or shorted while maintaining EIA/TIA-485 compatibility.
• Enhanced slew-rate limiting facilitates error-free data transmission by minimizing EMI and reducing reflections caused by improperly terminated cables.
• Hot-swap capability prevents data glitches during hot insertion into powered backplanes.
• Low-current shutdown mode reduces power consumption to 1nA.

Applications

• RS-422/RS-485 Communications
• Level Translators
• Transceivers for EMI-Sensitive Applications
• Industrial-Control Local-Area Networks

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate tape-and-reel packaging versus cut tape formats. Ensure the part number matches the exact thermal and electrical specifications required for the target application environment.

Selection Notes

Select this component for applications requiring compact surface-mount solutions with robust ESD protection. The MAX3061E variant is appropriate for systems needing data rates up to 500kbps with controlled signal edges. Verify that the 1/8-unit-load receiver impedance aligns with the total node count requirements of the communication bus design.

Part Context

This device belongs to the MAX3060E/MAX3061E/MAX3062E family of high-speed transceivers. While sharing the same package and core architecture, the MAX3061E is distinguished by its 500kbps maximum data rate and slew-rate-limited driver. This differentiates it from the slower MAX3060E and the faster non-slew-rate-limited MAX3062E.

Replacement Considerations

Public confirmed substitute part numbers: MAX3061EEKA+T, MAX3061EEKA-T.

FAQ

How does the fail-safe feature function in the MAX3061E?

The fail-safe circuitry guarantees a logic-high receiver output when the receiver inputs are open, shorted, or connected to a terminated line with all drivers disabled. This occurs because the receiver threshold is set between -50mV and -200mV.

What is the purpose of the hot-swap capability?

The hot-swap input structure prevents disturbances on the differential signal lines when a circuit board is plugged into a hot backplane. It holds the driver enable low until power stabilizes, preventing data glitches during insertion.

Can the MAX3061E support multiple nodes on a single bus?

Yes, the device features a 1/8-unit-load receiver input impedance, which allows up to 256 transceivers to be connected in parallel on one communication line.